31103023311023 has 16 divisors (see below), whose sum is σ = 31315853862720. Its totient is φ = 30890521138176.

The previous prime is 31103023310971. The next prime is 31103023311049. The reversal of 31103023311023 is 32011332030113.

It is a cyclic number.

It is not a de Polignac number, because 31103023311023 - 2¹⁰ = 31103023309999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31103023311023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103023311083) 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, 1006782965 + ... + 1006813857.

It is an arithmetic number, because the mean of its divisors is an integer number (1957240866420).

Almost surely, 2^{31103023311023} is an apocalyptic number.

31103023311023 is a deficient number, since it is larger than the sum of its proper divisors (212830551697).

31103023311023 is a wasteful number, since it uses less digits than its factorization.

31103023311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35986.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31103023311023 its reverse (32011332030113), we get a palindrome (63114355341136).

The spelling of 31103023311023 in words is "thirty-one trillion, one hundred three billion, twenty-three million, three hundred eleven thousand, twenty-three".