11603513312421 has 64 divisors (see below), whose sum is σ = 16657974466560. Its totient is φ = 7158833418240.

The previous prime is 11603513312399. The next prime is 11603513312471. The reversal of 11603513312421 is 12421331530611.

It is not a de Polignac number, because 11603513312421 - 2¹¹ = 11603513310373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11603513312471) 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 63 ways as a sum of consecutive naturals, for example, 1220005056 + ... + 1220014566.

It is an arithmetic number, because the mean of its divisors is an integer number (260280851040).

Almost surely, 2^{11603513312421} is an apocalyptic number.

It is an amenable number.

11603513312421 is a deficient number, since it is larger than the sum of its proper divisors (5054461154139).

11603513312421 is a wasteful number, since it uses less digits than its factorization.

11603513312421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11306.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 11603513312421 in words is "eleven trillion, six hundred three billion, five hundred thirteen million, three hundred twelve thousand, four hundred twenty-one".