31313233110023 has 4 divisors (see below), whose sum is σ = 31437987027048. Its totient is φ = 31188479193000.

The previous prime is 31313233109953. The next prime is 31313233110083. The reversal of 31313233110023 is 32001133231313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31313233110023 - 2³⁰ = 31312159368199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31313233109974 and 31313233110001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313233110083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62376958136 + ... + 62376958637.

It is an arithmetic number, because the mean of its divisors is an integer number (7859496756762).

Almost surely, 2^{31313233110023} is an apocalyptic number.

31313233110023 is a deficient number, since it is larger than the sum of its proper divisors (124753917025).

31313233110023 is a wasteful number, since it uses less digits than its factorization.

31313233110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124753917024.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31313233110023 its reverse (32001133231313), we get a palindrome (63314366341336).

The spelling of 31313233110023 in words is "thirty-one trillion, three hundred thirteen billion, two hundred thirty-three million, one hundred ten thousand, twenty-three".