131401420720 has 40 divisors (see below), whose sum is σ = 306611272944. Its totient is φ = 52370810112.

The previous prime is 131401420679. The next prime is 131401420757. The reversal of 131401420720 is 27024104131.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 2942674 + ... + 2986993.

Almost surely, 2^131401420720 is an apocalyptic number.

131401420720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131401420720 is an abundant number, since it is smaller than the sum of its proper divisors (175209852224).

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

131401420720 is a wasteful number, since it uses less digits than its factorization.

131401420720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5929957 (or 5929951 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 131401420720 its reverse (27024104131), we get a palindrome (158425524851).

The spelling of 131401420720 in words is "one hundred thirty-one billion, four hundred one million, four hundred twenty thousand, seven hundred twenty".