31112140323 has 16 divisors (see below), whose sum is σ = 45277053696. Its totient is φ = 18846246240.

The previous prime is 31112140303. The next prime is 31112140327. The reversal of 31112140323 is 32304121113.

It is not a de Polignac number, because 31112140323 - 2⁵ = 31112140291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31112140323.

It is not an unprimeable number, because it can be changed into a prime (31112140327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173815 + ... + 304032.

It is an arithmetic number, because the mean of its divisors is an integer number (2829815856).

Almost surely, 2^31112140323 is an apocalyptic number.

31112140323 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

31112140323 is a deficient number, since it is larger than the sum of its proper divisors (14164913373).

31112140323 is a wasteful number, since it uses less digits than its factorization.

31112140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479834.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31112140323 its reverse (32304121113), we get a palindrome (63416261436).

The spelling of 31112140323 in words is "thirty-one billion, one hundred twelve million, one hundred forty thousand, three hundred twenty-three".