20292123 has 4 divisors (see below), whose sum is σ = 27056168. Its totient is φ = 13528080.

The previous prime is 20292119. The next prime is 20292127. The reversal of 20292123 is 32129202.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (20292119) and next prime (20292127).

It is not a de Polignac number, because 20292123 - 2² = 20292119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20292123.

It is not an unprimeable number, because it can be changed into a prime (20292127) 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, 3382018 + ... + 3382023.

It is an arithmetic number, because the mean of its divisors is an integer number (6764042).

Almost surely, 2^20292123 is an apocalyptic number.

20292123 is a deficient number, since it is larger than the sum of its proper divisors (6764045).

20292123 is an equidigital number, since it uses as much as digits as its factorization.

20292123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764044.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20292123 is about 4504.6779019149. The cubic root of 20292123 is about 272.7569520327.

The spelling of 20292123 in words is "twenty million, two hundred ninety-two thousand, one hundred twenty-three".