2220120923 has 2 divisors, whose sum is σ = 2220120924. Its totient is φ = 2220120922.

The previous prime is 2220120919. The next prime is 2220120941. The reversal of 2220120923 is 3290210222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2220120923 - 2² = 2220120919 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220120943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110060461 + 1110060462.

It is an arithmetic number, because the mean of its divisors is an integer number (1110060462).

Almost surely, 2^2220120923 is an apocalyptic number.

2220120923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220120923 is an equidigital number, since it uses as much as digits as its factorization.

2220120923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 2220120923 is about 47118.1591639572. The cubic root of 2220120923 is about 1304.5444352605.

The spelling of 2220120923 in words is "two billion, two hundred twenty million, one hundred twenty thousand, nine hundred twenty-three".