131003231320 has 32 divisors (see below), whose sum is σ = 317430907920. Its totient is φ = 48370423680.

The previous prime is 131003231279. The next prime is 131003231357. The reversal of 131003231320 is 23132300131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125964126 + ... + 125965165.

Almost surely, 2^131003231320 is an apocalyptic number.

131003231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003231320 is an abundant number, since it is smaller than the sum of its proper divisors (186427676600).

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

131003231320 is a wasteful number, since it uses less digits than its factorization.

131003231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251929315 (or 251929311 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131003231320 its reverse (23132300131), we get a palindrome (154135531451).

The spelling of 131003231320 in words is "one hundred thirty-one billion, three million, two hundred thirty-one thousand, three hundred twenty".