131403312020040 has 64 divisors (see below), whose sum is σ = 397087380898560. Its totient is φ = 34785110330880.

The previous prime is 131403312020009. The next prime is 131403312020093. The reversal of 131403312020040 is 40020213304131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 3996434656 + ... + 3996467535.

It is an arithmetic number, because the mean of its divisors is an integer number (6204490326540).

Almost surely, 2^{131403312020040} is an apocalyptic number.

131403312020040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403312020040 is an abundant number, since it is smaller than the sum of its proper divisors (265684068878520).

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

131403312020040 is a wasteful number, since it uses less digits than its factorization.

131403312020040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992902342 (or 7992902338 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 131403312020040 its reverse (40020213304131), we get a palindrome (171423525324171).

The spelling of 131403312020040 in words is "one hundred thirty-one trillion, four hundred three billion, three hundred twelve million, twenty thousand, forty".