1251441034256 has 60 divisors (see below), whose sum is σ = 2821086010368. Its totient is φ = 536226336576.

The previous prime is 1251441034247. The next prime is 1251441034289. The reversal of 1251441034256 is 6524301441521.

It is a super-2 number, since 2×1251441034256² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3896465 + ... + 4205391.

Almost surely, 2^{1251441034256} is an apocalyptic number.

1251441034256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1251441034256 is an abundant number, since it is smaller than the sum of its proper divisors (1569644976112).

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

1251441034256 is a wasteful number, since it uses less digits than its factorization.

1251441034256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314116 (or 314103 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 1251441034256 its reverse (6524301441521), we get a palindrome (7775742475777).

The spelling of 1251441034256 in words is "one trillion, two hundred fifty-one billion, four hundred forty-one million, thirty-four thousand, two hundred fifty-six".