31023200123113 has 32 divisors (see below), whose sum is σ = 35899668592128. Its totient is φ = 26495525222400.

The previous prime is 31023200123093. The next prime is 31023200123137. The reversal of 31023200123113 is 31132100232013.

It is not a de Polignac number, because 31023200123113 - 2²¹ = 31023198025961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31023200123183) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233441781 + ... + 233574637.

It is an arithmetic number, because the mean of its divisors is an integer number (1121864643504).

Almost surely, 2^{31023200123113} is an apocalyptic number.

It is an amenable number.

31023200123113 is a deficient number, since it is larger than the sum of its proper divisors (4876468469015).

31023200123113 is a wasteful number, since it uses less digits than its factorization.

31023200123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135153.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31023200123113 its reverse (31132100232013), we get a palindrome (62155300355126).

The spelling of 31023200123113 in words is "thirty-one trillion, twenty-three billion, two hundred million, one hundred twenty-three thousand, one hundred thirteen".