220142023 has 4 divisors (see below), whose sum is σ = 220517640. Its totient is φ = 219766408.

The previous prime is 220142017. The next prime is 220142029. The reversal of 220142023 is 320241022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320241022 = 2 ⋅160120511.

It is an interprime number because it is at equal distance from previous prime (220142017) and next prime (220142029).

It is a cyclic number.

It is not a de Polignac number, because 220142023 - 2⁹ = 220141511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220141988 and 220142006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220142029) 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, 186928 + ... + 188101.

It is an arithmetic number, because the mean of its divisors is an integer number (55129410).

Almost surely, 2^220142023 is an apocalyptic number.

220142023 is a deficient number, since it is larger than the sum of its proper divisors (375617).

220142023 is an equidigital number, since it uses as much as digits as its factorization.

220142023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375616.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220142023 is about 14837.1837961252. The cubic root of 220142023 is about 603.8109496713.

Adding to 220142023 its reverse (320241022), we get a palindrome (540383045).

The spelling of 220142023 in words is "two hundred twenty million, one hundred forty-two thousand, twenty-three".