131100970 has 96 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 37699200.

The previous prime is 131100947. The next prime is 131100997. The reversal of 131100970 is 79001131.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 47 ways as a sum of consecutive naturals, for example, 69135 + ... + 71005.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^131100970 is an apocalyptic number.

131100970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131100970 is an abundant number, since it is smaller than the sum of its proper divisors (191571926).

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

131100970 is a wasteful number, since it uses less digits than its factorization.

131100970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 131100970 is about 11449.9331875780. The cubic root of 131100970 is about 508.0057581962.

It can be divided in two parts, 131 and 100970, that added together give a palindrome (101101).

The spelling of 131100970 in words is "one hundred thirty-one million, one hundred thousand, nine hundred seventy".