131001100401440 has 96 divisors (see below), whose sum is σ = 318146055200064. Its totient is φ = 50937477903360.

The previous prime is 131001100401389. The next prime is 131001100401461. The reversal of 131001100401440 is 44104001100131.

It is a super-2 number, since 2×131001100401440² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3682694 + ... + 16600133.

It is an arithmetic number, because the mean of its divisors is an integer number (3314021408334).

Almost surely, 2^{131001100401440} is an apocalyptic number.

131001100401440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131001100401440 is an abundant number, since it is smaller than the sum of its proper divisors (187144954798624).

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

131001100401440 is a wasteful number, since it uses less digits than its factorization.

131001100401440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20283970 (or 20283962 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 131001100401440 its reverse (44104001100131), we get a palindrome (175105101501571).

The spelling of 131001100401440 in words is "one hundred thirty-one trillion, one billion, one hundred million, four hundred one thousand, four hundred forty".