31311312211130 has 32 divisors (see below), whose sum is σ = 64577425461120. Its totient is φ = 10707709844160.

The previous prime is 31311312211111. The next prime is 31311312211147. The reversal of 31311312211130 is 3111221311313.

It is a junction number, because it is equal to n+sod(n) for n = 31311312211096 and 31311312211105.

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, 574914236 + ... + 574968695.

It is an arithmetic number, because the mean of its divisors is an integer number (2018044545660).

Almost surely, 2^{31311312211130} is an apocalyptic number.

31311312211130 is an abundant number, since it is smaller than the sum of its proper divisors (33266113249990).

31311312211130 is a wasteful number, since it uses less digits than its factorization.

31311312211130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149883334.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31311312211130 its reverse (3111221311313), we get a palindrome (34422533522443).

The spelling of 31311312211130 in words is "thirty-one trillion, three hundred eleven billion, three hundred twelve million, two hundred eleven thousand, one hundred thirty".