131322213320 has 16 divisors (see below), whose sum is σ = 295474980060. Its totient is φ = 52528885312.

The previous prime is 131322213301. The next prime is 131322213349. The reversal of 131322213320 is 23312223131.

It can be written as a sum of positive squares in 2 ways, for example, as 130466884804 + 855328516 = 361202^2 + 29246^2 .

It is a super-2 number, since 2×131322213320² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1641527627 + ... + 1641527706.

Almost surely, 2^131322213320 is an apocalyptic number.

131322213320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131322213320 is an abundant number, since it is smaller than the sum of its proper divisors (164152766740).

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

131322213320 is a wasteful number, since it uses less digits than its factorization.

131322213320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283055344 (or 3283055340 counting only the distinct ones).

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

Adding to 131322213320 its reverse (23312223131), we get a palindrome (154634436451).

The spelling of 131322213320 in words is "one hundred thirty-one billion, three hundred twenty-two million, two hundred thirteen thousand, three hundred twenty".