31232413231 has 16 divisors (see below), whose sum is σ = 32393023488. Its totient is φ = 30081664800.

The previous prime is 31232413217. The next prime is 31232413259. The reversal of 31232413231 is 13231423213.

It is a cyclic number.

It is not a de Polignac number, because 31232413231 - 2¹⁹ = 31231888943 is a prime.

It is a super-2 number, since 2×31232413231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31232413196 and 31232413205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232416231) 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, 8599786 + ... + 8603416.

It is an arithmetic number, because the mean of its divisors is an integer number (2024563968).

Almost surely, 2^31232413231 is an apocalyptic number.

31232413231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31232413231 is a deficient number, since it is larger than the sum of its proper divisors (1160610257).

31232413231 is a wasteful number, since it uses less digits than its factorization.

31232413231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902.

The product of its digits is 2592, while the sum is 25.

Adding to 31232413231 its reverse (13231423213), we get a palindrome (44463836444).

The spelling of 31232413231 in words is "thirty-one billion, two hundred thirty-two million, four hundred thirteen thousand, two hundred thirty-one".