220980923 has 2 divisors, whose sum is σ = 220980924. Its totient is φ = 220980922.

The previous prime is 220980911. The next prime is 220980961. The reversal of 220980923 is 329089022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220980923 - 2¹⁸ = 220718779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (220980973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110490461 + 110490462.

It is an arithmetic number, because the mean of its divisors is an integer number (110490462).

Almost surely, 2^220980923 is an apocalyptic number.

220980923 is a deficient number, since it is larger than the sum of its proper divisors (1).

220980923 is an equidigital number, since it uses as much as digits as its factorization.

220980923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 220980923 is about 14865.4271045268. The cubic root of 220980923 is about 604.5769626503.

The spelling of 220980923 in words is "two hundred twenty million, nine hundred eighty thousand, nine hundred twenty-three".