1235681568012 has 24 divisors (see below), whose sum is σ = 2883320513136. Its totient is φ = 411884781568.

The previous prime is 1235681568001. The next prime is 1235681568031. The reversal of 1235681568012 is 2108651865321.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 555093 + ... + 1667180.

It is an arithmetic number, because the mean of its divisors is an integer number (120138354714).

Almost surely, 2^{1235681568012} is an apocalyptic number.

1235681568012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1235681568012 is an abundant number, since it is smaller than the sum of its proper divisors (1647638945124).

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

1235681568012 is a wasteful number, since it uses less digits than its factorization.

1235681568012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268617 (or 2268615 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 1235681568012 in words is "one trillion, two hundred thirty-five billion, six hundred eighty-one million, five hundred sixty-eight thousand, twelve".