1252304411520 has 128 divisors (see below), whose sum is σ = 3992559063840. Its totient is φ = 333877673984.

The previous prime is 1252304411509. The next prime is 1252304411551. The reversal of 1252304411520 is 251144032521.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1252304411520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9412984 + ... + 9545096.

Almost surely, 2^{1252304411520} is an apocalyptic number.

1252304411520 is a gapful number since it is divisible by the number (10) 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 1252304411520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1996279531920).

1252304411520 is an abundant number, since it is smaller than the sum of its proper divisors (2740254652320).

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

1252304411520 is a wasteful number, since it uses less digits than its factorization.

1252304411520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137072 (or 137060 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 1252304411520 in words is "one trillion, two hundred fifty-two billion, three hundred four million, four hundred eleven thousand, five hundred twenty".