1231435453400 has 48 divisors (see below), whose sum is σ = 2929670878200. Its totient is φ = 481118964480.

The previous prime is 1231435453373. The next prime is 1231435453459. The reversal of 1231435453400 is 43545341321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71586485 + ... + 71603684.

Almost surely, 2^{1231435453400} is an apocalyptic number.

1231435453400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231435453400 is an abundant number, since it is smaller than the sum of its proper divisors (1698235424800).

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

1231435453400 is a wasteful number, since it uses less digits than its factorization.

1231435453400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143190228 (or 143190219 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 1231435453400 in words is "one trillion, two hundred thirty-one billion, four hundred thirty-five million, four hundred fifty-three thousand, four hundred".