13622023121 has 4 divisors (see below), whose sum is σ = 15568026432. Its totient is φ = 11676019812.

The previous prime is 13622023111. The next prime is 13622023123. The reversal of 13622023121 is 12132022631.

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: 12132022631 = 41 ⋅295902991.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13622023121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13622023123) 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, 973001645 + ... + 973001658.

It is an arithmetic number, because the mean of its divisors is an integer number (3892006608).

Almost surely, 2^13622023121 is an apocalyptic number.

It is an amenable number.

13622023121 is a deficient number, since it is larger than the sum of its proper divisors (1946003311).

13622023121 is an equidigital number, since it uses as much as digits as its factorization.

13622023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946003310.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13622023121 its reverse (12132022631), we get a palindrome (25754045752).

The spelling of 13622023121 in words is "thirteen billion, six hundred twenty-two million, twenty-three thousand, one hundred twenty-one".