131202320 has 40 divisors (see below), whose sum is σ = 309355200. Its totient is φ = 51739520.

The previous prime is 131202301. The next prime is 131202347. The reversal of 131202320 is 23202131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 131202295 and 131202304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5870 + ... + 17229.

It is an arithmetic number, because the mean of its divisors is an integer number (7733880).

Almost surely, 2^131202320 is an apocalyptic number.

131202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131202320 is an abundant number, since it is smaller than the sum of its proper divisors (178152880).

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

131202320 is a wasteful number, since it uses less digits than its factorization.

131202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23183 (or 23177 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 131202320 is about 11454.3581225663. The cubic root of 131202320 is about 508.1366321880.

Adding to 131202320 its reverse (23202131), we get a palindrome (154404451).

The spelling of 131202320 in words is "one hundred thirty-one million, two hundred two thousand, three hundred twenty".