22013123 has 8 divisors (see below), whose sum is σ = 24073200. Its totient is φ = 19962880.

The previous prime is 22013081. The next prime is 22013137. The reversal of 22013123 is 32131022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22013123 - 2⁸ = 22012867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22013098 and 22013107.

It is not an unprimeable number, because it can be changed into a prime (22013143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711 + ... + 7167.

It is an arithmetic number, because the mean of its divisors is an integer number (3009150).

Almost surely, 2^22013123 is an apocalyptic number.

22013123 is a deficient number, since it is larger than the sum of its proper divisors (2060077).

22013123 is a wasteful number, since it uses less digits than its factorization.

22013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22013123 is about 4691.8144677726. The cubic root of 22013123 is about 280.2596358735.

Adding to 22013123 its reverse (32131022), we get a palindrome (54144145).

The spelling of 22013123 in words is "twenty-two million, thirteen thousand, one hundred twenty-three".