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31023103103001 = 3226931340939837
BaseRepresentation
bin1110000110111001000010…
…00010100101000000011001
311001211210001101200102021200
413003130201002211000121
513031240303343244001
6145551452233224413
76351226262312532
oct703344102450031
9131753041612250
1031023103103001
119980907a271a9
12359059a562109
131440609c55c29
14793751c7d689
1538beae919086
hex1c37210a5019

31023103103001 has 24 divisors (see below), whose sum is σ = 45121433053320. Its totient is φ = 20539351961856.

The previous prime is 31023103102921. The next prime is 31023103103011. The reversal of 31023103103001 is 10030130132013.

It is a happy number.

31023103103001 is a `hidden beast` number, since 3 + 10 + 2 + 310 + 310 + 30 + 0 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 163712025 + 31022939390976 = 12795^2 + 5569824^2 .

It is not a de Polignac number, because 31023103103001 - 230 = 31022029361177 is a prime.

It is a super-2 number, since 2×310231031030012 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31023103103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19712146 + ... + 21227691.

It is an arithmetic number, because the mean of its divisors is an integer number (1880059710555).

Almost surely, 231023103103001 is an apocalyptic number.

It is an amenable number.

31023103103001 is a deficient number, since it is larger than the sum of its proper divisors (14098329950319).

31023103103001 is a wasteful number, since it uses less digits than its factorization.

31023103103001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40940425 (or 40940422 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31023103103001 its reverse (10030130132013), we get a palindrome (41053233235014).

The spelling of 31023103103001 in words is "thirty-one trillion, twenty-three billion, one hundred three million, one hundred three thousand, one".

Divisors: 1 3 9 269 313 807 939 2421 2817 84197 252591 757773 40939837 122819511 368458533 11012816153 12814168981 33038448459 38442506943 99115345377 115327520829 3447011455889 10341034367667 31023103103001