1200521551513 has 8 divisors (see below), whose sum is σ = 1220913106560. Its totient is φ = 1180131454320.

The previous prime is 1200521551499. The next prime is 1200521551613. The reversal of 1200521551513 is 3151551250021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200521551513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200521551613) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1365648 + ... + 2065438.

It is an arithmetic number, because the mean of its divisors is an integer number (152614138320).

Almost surely, 2^{1200521551513} is an apocalyptic number.

It is an amenable number.

1200521551513 is a deficient number, since it is larger than the sum of its proper divisors (20391555047).

1200521551513 is an equidigital number, since it uses as much as digits as its factorization.

1200521551513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728927.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 1200521551513 in words is "one trillion, two hundred billion, five hundred twenty-one million, five hundred fifty-one thousand, five hundred thirteen".