1231752250256 has 80 divisors (see below), whose sum is σ = 2648127384000. Its totient is φ = 550288780800.

The previous prime is 1231752250241. The next prime is 1231752250273. The reversal of 1231752250256 is 6520522571321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76303946 + ... + 76320086.

It is an arithmetic number, because the mean of its divisors is an integer number (33101592300).

Almost surely, 2^{1231752250256} is an apocalyptic number.

1231752250256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231752250256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324063692000).

1231752250256 is an abundant number, since it is smaller than the sum of its proper divisors (1416375133744).

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

1231752250256 is a wasteful number, since it uses less digits than its factorization.

1231752250256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23568 (or 23562 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The spelling of 1231752250256 in words is "one trillion, two hundred thirty-one billion, seven hundred fifty-two million, two hundred fifty thousand, two hundred fifty-six".