13131401304 has 32 divisors (see below), whose sum is σ = 37518289920. Its totient is φ = 3751828896.

The previous prime is 13131401291. The next prime is 13131401351. The reversal of 13131401304 is 40310413131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39081384 + ... + 39081719.

It is an arithmetic number, because the mean of its divisors is an integer number (1172446560).

Almost surely, 2^13131401304 is an apocalyptic number.

13131401304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13131401304 is an abundant number, since it is smaller than the sum of its proper divisors (24386888616).

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

13131401304 is a wasteful number, since it uses less digits than its factorization.

13131401304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78163119 (or 78163115 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13131401304 its reverse (40310413131), we get a palindrome (53441814435).

The spelling of 13131401304 in words is "thirteen billion, one hundred thirty-one million, four hundred one thousand, three hundred four".