1231237252752 has 80 divisors (see below), whose sum is σ = 3426822544320. Its totient is φ = 378681048576.

The previous prime is 1231237252709. The next prime is 1231237252753. The reversal of 1231237252752 is 2572527321321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1231237252753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1052199 + ... + 1889337.

It is an arithmetic number, because the mean of its divisors is an integer number (42835281804).

Almost surely, 2^{1231237252752} is an apocalyptic number.

1231237252752 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1231237252752 is an abundant number, since it is smaller than the sum of its proper divisors (2195585291568).

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

1231237252752 is a wasteful number, since it uses less digits than its factorization.

1231237252752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839520 (or 839514 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The spelling of 1231237252752 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-seven million, two hundred fifty-two thousand, seven hundred fifty-two".