131222313320 has 64 divisors (see below), whose sum is σ = 340582423680. Its totient is φ = 44570025216.

The previous prime is 131222313293. The next prime is 131222313323. The reversal of 131222313320 is 23313222131.

It is not an unprimeable number, because it can be changed into a prime (131222313323) 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, 2159999 + ... + 2219918.

It is an arithmetic number, because the mean of its divisors is an integer number (5321600370).

Almost surely, 2^131222313320 is an apocalyptic number.

131222313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131222313320 is an abundant number, since it is smaller than the sum of its proper divisors (209360110360).

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

131222313320 is a wasteful number, since it uses less digits than its factorization.

131222313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380042 (or 4380038 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 131222313320 its reverse (23313222131), we get a palindrome (154535535451).

The spelling of 131222313320 in words is "one hundred thirty-one billion, two hundred twenty-two million, three hundred thirteen thousand, three hundred twenty".