31010310313123 has 4 divisors (see below), whose sum is σ = 31022880364360. Its totient is φ = 30997740261888.

The previous prime is 31010310312977. The next prime is 31010310313133. The reversal of 31010310313123 is 32131301301013.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31010310313123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31010310313094 and 31010310313103.

It is not an unprimeable number, because it can be changed into a prime (31010310313133) 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, 6285021918 + ... + 6285026851.

It is an arithmetic number, because the mean of its divisors is an integer number (7755720091090).

Almost surely, 2^{31010310313123} is an apocalyptic number.

31010310313123 is a deficient number, since it is larger than the sum of its proper divisors (12570051237).

31010310313123 is a wasteful number, since it uses less digits than its factorization.

31010310313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570051236.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31010310313123 its reverse (32131301301013), we get a palindrome (63141611614136).

The spelling of 31010310313123 in words is "thirty-one trillion, ten billion, three hundred ten million, three hundred thirteen thousand, one hundred twenty-three".