131223080 has 32 divisors (see below), whose sum is σ = 300261600. Its totient is φ = 51598656.

The previous prime is 131223047. The next prime is 131223097. The reversal of 131223080 is 80322131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25442 + ... + 30161.

It is an arithmetic number, because the mean of its divisors is an integer number (9383175).

Almost surely, 2^131223080 is an apocalyptic number.

131223080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131223080 is an abundant number, since it is smaller than the sum of its proper divisors (169038520).

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

131223080 is a wasteful number, since it uses less digits than its factorization.

131223080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55673 (or 55669 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 131223080 is about 11455.2642920188. The cubic root of 131223080 is about 508.1634314096.

The spelling of 131223080 in words is "one hundred thirty-one million, two hundred twenty-three thousand, eighty".