220671023 has 4 divisors (see below), whose sum is σ = 222946080. Its totient is φ = 218395968.

The previous prime is 220670981. The next prime is 220671029. The reversal of 220671023 is 320176022.

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 220671023 - 2⁸ = 220670767 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220671023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220671029) 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, 1137383 + ... + 1137576.

It is an arithmetic number, because the mean of its divisors is an integer number (55736520).

Almost surely, 2^220671023 is an apocalyptic number.

220671023 is a deficient number, since it is larger than the sum of its proper divisors (2275057).

220671023 is an equidigital number, since it uses as much as digits as its factorization.

220671023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275056.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 220671023 is about 14854.9999326826. Note that the first 4 decimals coincide. The cubic root of 220671023 is about 604.2942141831.

The spelling of 220671023 in words is "two hundred twenty million, six hundred seventy-one thousand, twenty-three".