31112211122130 has 32 divisors (see below), whose sum is σ = 74669549410368. Its totient is φ = 8296562664000.

The previous prime is 31112211122129. The next prime is 31112211122137. The reversal of 31112211122130 is 3122111221113.

It is a junction number, because it is equal to n+sod(n) for n = 31112211122097 and 31112211122106.

It is not an unprimeable number, because it can be changed into a prime (31112211122137) 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, 8758305 + ... + 11786955.

It is an arithmetic number, because the mean of its divisors is an integer number (2333423419074).

Almost surely, 2^{31112211122130} is an apocalyptic number.

31112211122130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31112211122130 is an abundant number, since it is smaller than the sum of its proper divisors (43557338288238).

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

31112211122130 is a wasteful number, since it uses less digits than its factorization.

31112211122130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371082.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 31112211122130 its reverse (3122111221113), we get a palindrome (34234322343243).

The spelling of 31112211122130 in words is "thirty-one trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, one hundred thirty".