22013404123 has 4 divisors (see below), whose sum is σ = 23172004360. Its totient is φ = 20854803888.

The previous prime is 22013404103. The next prime is 22013404139. The reversal of 22013404123 is 32140431022.

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 22013404123 - 2⁹ = 22013403611 is a prime.

It is a super-2 number, since 2×22013404123² (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 = 22013404094 and 22013404103.

It is not an unprimeable number, because it can be changed into a prime (22013404103) 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, 579300090 + ... + 579300127.

It is an arithmetic number, because the mean of its divisors is an integer number (5793001090).

Almost surely, 2^22013404123 is an apocalyptic number.

22013404123 is a deficient number, since it is larger than the sum of its proper divisors (1158600237).

22013404123 is a wasteful number, since it uses less digits than its factorization.

22013404123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158600236.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22013404123 its reverse (32140431022), we get a palindrome (54153835145).

The spelling of 22013404123 in words is "twenty-two billion, thirteen million, four hundred four thousand, one hundred twenty-three".