1231431120304 has 40 divisors (see below), whose sum is σ = 2974625826048. Its totient is φ = 479778358080.

The previous prime is 1231431120299. The next prime is 1231431120319. The reversal of 1231431120304 is 4030211341321.

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, 499767892 + ... + 499770355.

Almost surely, 2^{1231431120304} is an apocalyptic number.

1231431120304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1231431120304 is an abundant number, since it is smaller than the sum of its proper divisors (1743194705744).

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

1231431120304 is a wasteful number, since it uses less digits than its factorization.

1231431120304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999538273 (or 999538267 counting only the distinct ones).

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

Adding to 1231431120304 its reverse (4030211341321), we get a palindrome (5261642461625).

The spelling of 1231431120304 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-one million, one hundred twenty thousand, three hundred four".