31103023121022 has 16 divisors (see below), whose sum is σ = 62220611043072. Its totient is φ = 10365246906840.

The previous prime is 31103023121003. The next prime is 31103023121033. The reversal of 31103023121022 is 22012132030113.

It is a super-2 number, since 2×31103023121022² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31103023121022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606838948 + ... + 606890199.

It is an arithmetic number, because the mean of its divisors is an integer number (3888788190192).

Almost surely, 2^{31103023121022} is an apocalyptic number.

31103023121022 is an abundant number, since it is smaller than the sum of its proper divisors (31117587922050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31103023121022 is a wasteful number, since it uses less digits than its factorization.

31103023121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213733423.

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

Adding to 31103023121022 its reverse (22012132030113), we get a palindrome (53115155151135).

The spelling of 31103023121022 in words is "thirty-one trillion, one hundred three billion, twenty-three million, one hundred twenty-one thousand, twenty-two".