131000000280 has 64 divisors (see below), whose sum is σ = 393155458560. Its totient is φ = 34919515008.

The previous prime is 131000000267. The next prime is 131000000297. The reversal of 131000000280 is 82000000131.

It is a happy number.

It is a super-2 number, since 2×131000000280² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 15 ways as a sum of consecutive naturals, for example, 90519 + ... + 519801.

It is an arithmetic number, because the mean of its divisors is an integer number (6143054040).

Almost surely, 2^131000000280 is an apocalyptic number.

131000000280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000000280 is an abundant number, since it is smaller than the sum of its proper divisors (262155458280).

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

131000000280 is a wasteful number, since it uses less digits than its factorization.

131000000280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431840 (or 431836 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The spelling of 131000000280 in words is "one hundred thirty-one billion, two hundred eighty", and thus it is an aban number.