131820263700 has 36 divisors (see below), whose sum is σ = 381399963840. Its totient is φ = 35152070240.

The previous prime is 131820263693. The next prime is 131820263713. The reversal of 131820263700 is 7362028131.

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 11 ways as a sum of consecutive naturals, for example, 219700140 + ... + 219700739.

It is an arithmetic number, because the mean of its divisors is an integer number (10594443440).

Almost surely, 2^131820263700 is an apocalyptic number.

131820263700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131820263700 is an abundant number, since it is smaller than the sum of its proper divisors (249579700140).

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

131820263700 is a wasteful number, since it uses less digits than its factorization.

131820263700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439400896 (or 439400889 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 131820263700 in words is "one hundred thirty-one billion, eight hundred twenty million, two hundred sixty-three thousand, seven hundred".