12501044025511 has 4 divisors (see below), whose sum is σ = 12508534167400. Its totient is φ = 12493553883624.

The previous prime is 12501044025433. The next prime is 12501044025529. The reversal of 12501044025511 is 11552044010521.

12501044025511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12501044025511 - 2⁷ = 12501044025383 is a prime.

It is a super-2 number, since 2×12501044025511² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501044023511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3745068441 + ... + 3745071778.

It is an arithmetic number, because the mean of its divisors is an integer number (3127133541850).

Almost surely, 2^{12501044025511} is an apocalyptic number.

12501044025511 is a deficient number, since it is larger than the sum of its proper divisors (7490141889).

12501044025511 is an equidigital number, since it uses as much as digits as its factorization.

12501044025511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490141888.

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 12501044025511 in words is "twelve trillion, five hundred one billion, forty-four million, twenty-five thousand, five hundred eleven".