11621363128071 has 4 divisors (see below), whose sum is σ = 15495150837432. Its totient is φ = 7747575418712.

The previous prime is 11621363128049. The next prime is 11621363128091. The reversal of 11621363128071 is 17082136312611.

11621363128071 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 11621363128071 - 2⁷ = 11621363127943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621363128091) 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, 1936893854676 + ... + 1936893854681.

It is an arithmetic number, because the mean of its divisors is an integer number (3873787709358).

Almost surely, 2^{11621363128071} is an apocalyptic number.

11621363128071 is a deficient number, since it is larger than the sum of its proper divisors (3873787709361).

11621363128071 is an equidigital number, since it uses as much as digits as its factorization.

11621363128071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873787709360.

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 11621363128071 in words is "eleven trillion, six hundred twenty-one billion, three hundred sixty-three million, one hundred twenty-eight thousand, seventy-one".