131321120 has 48 divisors (see below), whose sum is σ = 354570048. Its totient is φ = 45024000.

The previous prime is 131321101. The next prime is 131321131. The reversal of 131321120 is 21123131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 131321095 and 131321104.

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, 57506 + ... + 59745.

It is an arithmetic number, because the mean of its divisors is an integer number (7386876).

Almost surely, 2^131321120 is an apocalyptic number.

131321120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131321120 is an abundant number, since it is smaller than the sum of its proper divisors (223248928).

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

131321120 is a wasteful number, since it uses less digits than its factorization.

131321120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117273 (or 117265 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131321120 is about 11459.5427482950. The cubic root of 131321120 is about 508.2899537171.

Adding to 131321120 its reverse (21123131), we get a palindrome (152444251).

The spelling of 131321120 in words is "one hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty".