131020312210 has 32 divisors (see below), whose sum is σ = 239473459584. Its totient is φ = 51601872000.

The previous prime is 131020312187. The next prime is 131020312249. The reversal of 131020312210 is 12213020131.

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, 419065 + ... + 661555.

It is an arithmetic number, because the mean of its divisors is an integer number (7483545612).

Almost surely, 2^131020312210 is an apocalyptic number.

131020312210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131020312210 is a deficient number, since it is larger than the sum of its proper divisors (108453147374).

131020312210 is a wasteful number, since it uses less digits than its factorization.

131020312210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243330.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131020312210 its reverse (12213020131), we get a palindrome (143233332341).

The spelling of 131020312210 in words is "one hundred thirty-one billion, twenty million, three hundred twelve thousand, two hundred ten".