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31323001101 = 376997213173
BaseRepresentation
bin11101001010111111…
…110001000100001101
32222211221202022200220
4131022333301010031
51003122142013401
622220052341553
72156133054630
oct351277610415
988757668626
1031323001101
1112314021377
1260a20148b9
132c524c44a2
141732035c17
15c34d5e336
hex74aff110d

31323001101 has 16 divisors (see below), whose sum is σ = 47737332864. Its totient is φ = 17896215744.

The previous prime is 31323001069. The next prime is 31323001169. The reversal of 31323001101 is 10110032313.

It is not a de Polignac number, because 31323001101 - 25 = 31323001069 is a prime.

It is a super-2 number, since 2×313230011012 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323001001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40351 + ... + 253523.

It is an arithmetic number, because the mean of its divisors is an integer number (2983583304).

Almost surely, 231323001101 is an apocalyptic number.

It is an amenable number.

31323001101 is a deficient number, since it is larger than the sum of its proper divisors (16414331763).

31323001101 is a wasteful number, since it uses less digits than its factorization.

31323001101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220180.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31323001101 its reverse (10110032313), we get a palindrome (41433033414).

The spelling of 31323001101 in words is "thirty-one billion, three hundred twenty-three million, one thousand, one hundred one".

Divisors: 1 3 7 21 6997 20991 48979 146937 213173 639519 1492211 4476633 1491571481 4474714443 10441000367 31323001101