11431431304 has 16 divisors (see below), whose sum is σ = 21692175120. Its totient is φ = 5646851280.

The previous prime is 11431431289. The next prime is 11431431313. The reversal of 11431431304 is 40313413411.

It is a happy number.

It is a super-2 number, since 2×11431431304² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8607342 + ... + 8608669.

It is an arithmetic number, because the mean of its divisors is an integer number (1355760945).

Almost surely, 2^11431431304 is an apocalyptic number.

It is an amenable number.

11431431304 is a deficient number, since it is larger than the sum of its proper divisors (10260743816).

11431431304 is a wasteful number, since it uses less digits than its factorization.

11431431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17216100 (or 17216096 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 11431431304 its reverse (40313413411), we get a palindrome (51744844715).

The spelling of 11431431304 in words is "eleven billion, four hundred thirty-one million, four hundred thirty-one thousand, three hundred four".