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31332311023 = 1317612324183
BaseRepresentation
bin11101001011100011…
…010001111111101111
32222212121021022111211
4131023203101333233
51003132032423043
622221024055251
72156305151356
oct351343217757
988777238454
1031332311023
1112319300022
1260a5164527
132c54403c10
14173337a99d
15c35a9ca9d
hex74b8d1fef

31332311023 has 16 divisors (see below), whose sum is σ = 36313050816. Its totient is φ = 26774576640.

The previous prime is 31332310973. The next prime is 31332311027. The reversal of 31332311023 is 32011323313.

It is a cyclic number.

It is not a de Polignac number, because 31332311023 - 213 = 31332302831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31332310985 and 31332311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332311027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1148611 + ... + 1175572.

It is an arithmetic number, because the mean of its divisors is an integer number (2269565676).

Almost surely, 231332311023 is an apocalyptic number.

31332311023 is a deficient number, since it is larger than the sum of its proper divisors (4980739793).

31332311023 is a wasteful number, since it uses less digits than its factorization.

31332311023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324274.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31332311023 its reverse (32011323313), we get a palindrome (63343634336).

The spelling of 31332311023 in words is "thirty-one billion, three hundred thirty-two million, three hundred eleven thousand, twenty-three".

Divisors: 1 13 17 61 221 793 1037 13481 2324183 30214379 39511111 141775163 513644443 1843077119 2410177771 31332311023