131444232040 has 64 divisors (see below), whose sum is σ = 325830366720. Its totient is φ = 47324640000.

The previous prime is 131444232019. The next prime is 131444232041. The reversal of 131444232040 is 40232444131.

It is a super-2 number, since 2×131444232040² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131444232041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1434456 + ... + 1523335.

It is an arithmetic number, because the mean of its divisors is an integer number (5091099480).

Almost surely, 2^131444232040 is an apocalyptic number.

131444232040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131444232040 is an abundant number, since it is smaller than the sum of its proper divisors (194386134680).

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

131444232040 is a wasteful number, since it uses less digits than its factorization.

131444232040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957914 (or 2957910 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 131444232040 its reverse (40232444131), we get a palindrome (171676676171).

The spelling of 131444232040 in words is "one hundred thirty-one billion, four hundred forty-four million, two hundred thirty-two thousand, forty".