131820523250 has 32 divisors (see below), whose sum is σ = 265750181424. Its totient is φ = 48672192000.

The previous prime is 131820523243. The next prime is 131820523283. The reversal of 131820523250 is 52325028131.

It can be written as a sum of positive squares in 8 ways, for example, as 3701627281 + 128118895969 = 60841^2 + 357937^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20276831 + ... + 20283330.

Almost surely, 2^131820523250 is an apocalyptic number.

131820523250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131820523250 is an abundant number, since it is smaller than the sum of its proper divisors (133929658174).

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

131820523250 is a wasteful number, since it uses less digits than its factorization.

131820523250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40560191 (or 40560181 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 131820523250 in words is "one hundred thirty-one billion, eight hundred twenty million, five hundred twenty-three thousand, two hundred fifty".