22013321123 has 4 divisors (see below), whose sum is σ = 22723428288. Its totient is φ = 21303213960.

The previous prime is 22013321119. The next prime is 22013321147. The reversal of 22013321123 is 32112331022.

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 22013321123 - 2² = 22013321119 is a prime.

It is a super-2 number, since 2×22013321123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013321095 and 22013321104.

It is not an unprimeable number, because it can be changed into a prime (22013321173) 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, 355053536 + ... + 355053597.

It is an arithmetic number, because the mean of its divisors is an integer number (5680857072).

Almost surely, 2^22013321123 is an apocalyptic number.

22013321123 is a deficient number, since it is larger than the sum of its proper divisors (710107165).

22013321123 is an equidigital number, since it uses as much as digits as its factorization.

22013321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710107164.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22013321123 its reverse (32112331022), we get a palindrome (54125652145).

The spelling of 22013321123 in words is "twenty-two billion, thirteen million, three hundred twenty-one thousand, one hundred twenty-three".