220393123 has 2 divisors, whose sum is σ = 220393124. Its totient is φ = 220393122.

The previous prime is 220393099. The next prime is 220393139. The reversal of 220393123 is 321393022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220393123 - 2²¹ = 218295971 is a prime.

It is not a weakly prime, because it can be changed into another prime (220393193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110196561 + 110196562.

It is an arithmetic number, because the mean of its divisors is an integer number (110196562).

Almost surely, 2^220393123 is an apocalyptic number.

220393123 is a deficient number, since it is larger than the sum of its proper divisors (1).

220393123 is an equidigital number, since it uses as much as digits as its factorization.

220393123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 220393123 is about 14845.6432329489. The cubic root of 220393123 is about 604.0404368568.

The spelling of 220393123 in words is "two hundred twenty million, three hundred ninety-three thousand, one hundred twenty-three".