11322641621 has 4 divisors (see below), whose sum is σ = 11585958912. Its totient is φ = 11059324332.

The previous prime is 11322641587. The next prime is 11322641653. The reversal of 11322641621 is 12614622311.

11322641621 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12614622311 = 401 ⋅31457911.

It is a cyclic number.

It is not a de Polignac number, because 11322641621 - 2²² = 11318447317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322641921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131658581 + ... + 131658666.

It is an arithmetic number, because the mean of its divisors is an integer number (2896489728).

Almost surely, 2^11322641621 is an apocalyptic number.

It is an amenable number.

11322641621 is a deficient number, since it is larger than the sum of its proper divisors (263317291).

11322641621 is an equidigital number, since it uses as much as digits as its factorization.

11322641621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263317290.

The product of its digits is 3456, while the sum is 29.

The spelling of 11322641621 in words is "eleven billion, three hundred twenty-two million, six hundred forty-one thousand, six hundred twenty-one".