1101252513520 has 20 divisors (see below), whose sum is σ = 2560412094120. Its totient is φ = 440501005376.

The previous prime is 1101252513509. The next prime is 1101252513563. The reversal of 1101252513520 is 253152521011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6882828130 + ... + 6882828289.

It is an arithmetic number, because the mean of its divisors is an integer number (128020604706).

Almost surely, 2^{1101252513520} is an apocalyptic number.

1101252513520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101252513520 is an abundant number, since it is smaller than the sum of its proper divisors (1459159580600).

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

1101252513520 is a wasteful number, since it uses less digits than its factorization.

1101252513520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765656432 (or 13765656426 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The spelling of 1101252513520 in words is "one trillion, one hundred one billion, two hundred fifty-two million, five hundred thirteen thousand, five hundred twenty".