1231504255324 has 12 divisors (see below), whose sum is σ = 2463008510704. Its totient is φ = 527787537984.

The previous prime is 1231504255321. The next prime is 1231504255381. The reversal of 1231504255324 is 4235524051321.

It is a happy number.

1231504255324 is an admirable number.

It is a super-2 number, since 2×1231504255324² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231504255321) 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, 21991147389 + ... + 21991147444.

Almost surely, 2^{1231504255324} is an apocalyptic number.

1231504255324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1231504255324 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.

1231504255324 is a wasteful number, since it uses less digits than its factorization.

1231504255324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43982294844 (or 43982294842 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1231504255324 in words is "one trillion, two hundred thirty-one billion, five hundred four million, two hundred fifty-five thousand, three hundred twenty-four".