1251053200452 has 48 divisors (see below), whose sum is σ = 3229351179264. Its totient is φ = 373767492000.

The previous prime is 1251053200379. The next prime is 1251053200471. The reversal of 1251053200452 is 2540023501521.

It is a super-2 number, since 2×1251053200452² (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 15 ways as a sum of consecutive naturals, for example, 66734824 + ... + 66753567.

It is an arithmetic number, because the mean of its divisors is an integer number (67278149568).

Almost surely, 2^{1251053200452} is an apocalyptic number.

1251053200452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1251053200452 is an abundant number, since it is smaller than the sum of its proper divisors (1978297978812).

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

1251053200452 is a wasteful number, since it uses less digits than its factorization.

1251053200452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133488480 (or 133488478 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 1251053200452 its reverse (2540023501521), we get a palindrome (3791076701973).

The spelling of 1251053200452 in words is "one trillion, two hundred fifty-one billion, fifty-three million, two hundred thousand, four hundred fifty-two".