22113420123 has 48 divisors (see below), whose sum is σ = 33957740160. Its totient is φ = 12720257280.

The previous prime is 22113420113. The next prime is 22113420163. The reversal of 22113420123 is 32102431122.

It is not a de Polignac number, because 22113420123 - 2¹⁰ = 22113419099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22113420123.

It is not an unprimeable number, because it can be changed into a prime (22113420103) 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 47 ways as a sum of consecutive naturals, for example, 919336 + ... + 943082.

It is an arithmetic number, because the mean of its divisors is an integer number (707452920).

Almost surely, 2^22113420123 is an apocalyptic number.

22113420123 is a deficient number, since it is larger than the sum of its proper divisors (11844320037).

22113420123 is a wasteful number, since it uses less digits than its factorization.

22113420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23848 (or 23817 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 22113420123 its reverse (32102431122), we get a palindrome (54215851245).

The spelling of 22113420123 in words is "twenty-two billion, one hundred thirteen million, four hundred twenty thousand, one hundred twenty-three".