202420097923 has 2 divisors, whose sum is σ = 202420097924. Its totient is φ = 202420097922.

The previous prime is 202420097917. The next prime is 202420097939. The reversal of 202420097923 is 329790024202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202420097923 - 2²⁹ = 201883227011 is a prime.

It is not a weakly prime, because it can be changed into another prime (202420097323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101210048961 + 101210048962.

It is an arithmetic number, because the mean of its divisors is an integer number (101210048962).

Almost surely, 2^202420097923 is an apocalyptic number.

202420097923 is a deficient number, since it is larger than the sum of its proper divisors (1).

202420097923 is an equidigital number, since it uses as much as digits as its factorization.

202420097923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 202420097923 in words is "two hundred two billion, four hundred twenty million, ninety-seven thousand, nine hundred twenty-three".