13431240004 has 24 divisors (see below), whose sum is σ = 28928825408. Its totient is φ = 5313457440.

The previous prime is 13431239999. The next prime is 13431240007. The reversal of 13431240004 is 40004213431.

It is not an unprimeable number, because it can be changed into a prime (13431240007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18449142 + ... + 18449869.

Almost surely, 2^13431240004 is an apocalyptic number.

13431240004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13431240004 is an abundant number, since it is smaller than the sum of its proper divisors (15497585404).

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

13431240004 is a wasteful number, since it uses less digits than its factorization.

13431240004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36899035 (or 36899033 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13431240004 its reverse (40004213431), we get a palindrome (53435453435).

The spelling of 13431240004 in words is "thirteen billion, four hundred thirty-one million, two hundred forty thousand, four".