31231233110022 has 32 divisors (see below), whose sum is σ = 68743888824960. Its totient is φ = 9380257729920.

The previous prime is 31231233110009. The next prime is 31231233110039. The reversal of 31231233110022 is 22001133213213.

It is a junction number, because it is equal to n+sod(n) for n = 31231233109974 and 31231233110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2093800072 + ... + 2093814987.

It is an arithmetic number, because the mean of its divisors is an integer number (2148246525780).

Almost surely, 2^{31231233110022} is an apocalyptic number.

31231233110022 is an abundant number, since it is smaller than the sum of its proper divisors (37512655714938).

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

31231233110022 is a wasteful number, since it uses less digits than its factorization.

31231233110022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187615188.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31231233110022 its reverse (22001133213213), we get a palindrome (53232366323235).

The spelling of 31231233110022 in words is "thirty-one trillion, two hundred thirty-one billion, two hundred thirty-three million, one hundred ten thousand, twenty-two".