131004002432 has 16 divisors (see below), whose sum is σ = 260984536350. Its totient is φ = 65502001152.

The previous prime is 131004002399. The next prime is 131004002477. The reversal of 131004002432 is 234200400131.

It can be written as a sum of positive squares in only one way, i.e., 114931848256 + 16072154176 = 339016^2 + 126776^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511734257 + ... + 511734512.

Almost surely, 2^131004002432 is an apocalyptic number.

It is an amenable number.

131004002432 is a deficient number, since it is larger than the sum of its proper divisors (129980533918).

131004002432 is an equidigital number, since it uses as much as digits as its factorization.

131004002432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023468783 (or 1023468771 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131004002432 its reverse (234200400131), we get a palindrome (365204402563).

The spelling of 131004002432 in words is "one hundred thirty-one billion, four million, two thousand, four hundred thirty-two".