31103032022131 has 4 divisors (see below), whose sum is σ = 31122219582064. Its totient is φ = 31083844462200.

The previous prime is 31103032022123. The next prime is 31103032022147. The reversal of 31103032022131 is 13122023030113.

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 31103032022131 - 2³ = 31103032022123 is a prime.

It is a super-2 number, since 2×31103032022131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103032022431) 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, 9593777535 + ... + 9593780776.

It is an arithmetic number, because the mean of its divisors is an integer number (7780554895516).

Almost surely, 2^{31103032022131} is an apocalyptic number.

31103032022131 is a deficient number, since it is larger than the sum of its proper divisors (19187559933).

31103032022131 is a wasteful number, since it uses less digits than its factorization.

31103032022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19187559932.

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

Adding to 31103032022131 its reverse (13122023030113), we get a palindrome (44225055052244).

The spelling of 31103032022131 in words is "thirty-one trillion, one hundred three billion, thirty-two million, twenty-two thousand, one hundred thirty-one".