1231330009976 has 32 divisors (see below), whose sum is σ = 2540918343600. Its totient is φ = 554742397440.

The previous prime is 1231330009933. The next prime is 1231330009999. The reversal of 1231330009976 is 6799000331321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 7 ways as a sum of consecutive naturals, for example, 61903271 + ... + 61923158.

Almost surely, 2^{1231330009976} is an apocalyptic number.

It is an amenable number.

1231330009976 is an abundant number, since it is smaller than the sum of its proper divisors (1309588333624).

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

1231330009976 is a wasteful number, since it uses less digits than its factorization.

1231330009976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123826559 (or 123826555 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 1231330009976 in words is "one trillion, two hundred thirty-one billion, three hundred thirty million, nine thousand, nine hundred seventy-six".