131222311010 has 64 divisors (see below), whose sum is σ = 284583946752. Its totient is φ = 42590693376.

The previous prime is 131222311009. The next prime is 131222311043. The reversal of 131222311010 is 10113222131.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131222311010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263957 + ... + 576296.

It is an arithmetic number, because the mean of its divisors is an integer number (4446624168).

Almost surely, 2^131222311010 is an apocalyptic number.

131222311010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222311010 is an abundant number, since it is smaller than the sum of its proper divisors (153361635742).

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

131222311010 is a wasteful number, since it uses less digits than its factorization.

131222311010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840387.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131222311010 its reverse (10113222131), we get a palindrome (141335533141).

The spelling of 131222311010 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred eleven thousand, ten".