131000120 has 16 divisors (see below), whose sum is σ = 294750360. Its totient is φ = 52400032.

The previous prime is 131000087. The next prime is 131000161. The reversal of 131000120 is 21000131.

It is a super-2 number, since 2×131000120² = 34322062880028800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 131000098 and 131000107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1637462 + ... + 1637541.

Almost surely, 2^131000120 is an apocalyptic number.

131000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000120 is an abundant number, since it is smaller than the sum of its proper divisors (163750240).

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

131000120 is a wasteful number, since it uses less digits than its factorization.

131000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275014 (or 3275010 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 131000120 is about 11445.5283844827. The cubic root of 131000120 is about 507.8754628897.

Adding to 131000120 its reverse (21000131), we get a palindrome (152000251).

The spelling of 131000120 in words is "one hundred thirty-one million, one hundred twenty", and thus it is an aban number.