122023813 has 4 divisors (see below), whose sum is σ = 122279040. Its totient is φ = 121768588.

The previous prime is 122023801. The next prime is 122023819. The reversal of 122023813 is 318320221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122023813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122023819) 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, 126895 + ... + 127852.

It is an arithmetic number, because the mean of its divisors is an integer number (30569760).

Almost surely, 2^122023813 is an apocalyptic number.

It is an amenable number.

122023813 is a deficient number, since it is larger than the sum of its proper divisors (255227).

122023813 is an equidigital number, since it uses as much as digits as its factorization.

122023813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255226.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 122023813 is about 11046.4389284511. The cubic root of 122023813 is about 495.9998333441. Note that the first 3 decimals are identical.

The spelling of 122023813 in words is "one hundred twenty-two million, twenty-three thousand, eight hundred thirteen".