202112923 has 4 divisors (see below), whose sum is σ = 203967280. Its totient is φ = 200258568.

The previous prime is 202112921. The next prime is 202112929. The reversal of 202112923 is 329211202.

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 202112923 - 2¹ = 202112921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202112894 and 202112903.

It is not an unprimeable number, because it can be changed into a prime (202112921) 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, 927015 + ... + 927232.

It is an arithmetic number, because the mean of its divisors is an integer number (50991820).

Almost surely, 2^202112923 is an apocalyptic number.

202112923 is a deficient number, since it is larger than the sum of its proper divisors (1854357).

202112923 is a wasteful number, since it uses less digits than its factorization.

202112923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854356.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 202112923 is about 14216.6424657864. The cubic root of 202112923 is about 586.8557457363.

The spelling of 202112923 in words is "two hundred two million, one hundred twelve thousand, nine hundred twenty-three".