1231401451748 has 12 divisors (see below), whose sum is σ = 2320718120700. Its totient is φ = 568339131552.

The previous prime is 1231401451723. The next prime is 1231401451769. The reversal of 1231401451748 is 8471541041321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 254225707264 + 977175744484 = 504208^2 + 988522^2 .

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, 11840398523 + ... + 11840398626.

It is an arithmetic number, because the mean of its divisors is an integer number (193393176725).

Almost surely, 2^{1231401451748} is an apocalyptic number.

It is an amenable number.

1231401451748 is a deficient number, since it is larger than the sum of its proper divisors (1089316668952).

1231401451748 is a wasteful number, since it uses less digits than its factorization.

1231401451748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23680797166 (or 23680797164 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The spelling of 1231401451748 in words is "one trillion, two hundred thirty-one billion, four hundred one million, four hundred fifty-one thousand, seven hundred forty-eight".