131004040304 has 20 divisors (see below), whose sum is σ = 262008081600. Its totient is φ = 63389051520.

The previous prime is 131004040283. The next prime is 131004040309. The reversal of 131004040304 is 403040400131.

It is a happy number.

131004040304 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131004040309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132060029 + ... + 132061020.

It is an arithmetic number, because the mean of its divisors is an integer number (13100404080).

Almost surely, 2^131004040304 is an apocalyptic number.

It is an amenable number.

131004040304 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131004040304 is a wasteful number, since it uses less digits than its factorization.

131004040304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264121088 (or 264121082 counting only the distinct ones).

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

Adding to 131004040304 its reverse (403040400131), we get a palindrome (534044440435).

The spelling of 131004040304 in words is "one hundred thirty-one billion, four million, forty thousand, three hundred four".