22013002123 has 4 divisors (see below), whose sum is σ = 25157716720. Its totient is φ = 18868287528.

The previous prime is 22013002117. The next prime is 22013002153. The reversal of 22013002123 is 32120031022.

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 22013002123 - 2²⁵ = 21979447691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013002097 and 22013002106.

It is not an unprimeable number, because it can be changed into a prime (22013002153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572357288 + ... + 1572357301.

It is an arithmetic number, because the mean of its divisors is an integer number (6289429180).

Almost surely, 2^22013002123 is an apocalyptic number.

22013002123 is a deficient number, since it is larger than the sum of its proper divisors (3144714597).

22013002123 is an equidigital number, since it uses as much as digits as its factorization.

22013002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144714596.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22013002123 its reverse (32120031022), we get a palindrome (54133033145).

The spelling of 22013002123 in words is "twenty-two billion, thirteen million, two thousand, one hundred twenty-three".