220100023 has 24 divisors (see below), whose sum is σ = 261754416. Its totient is φ = 183456000.

The previous prime is 220099973. The next prime is 220100039. The reversal of 220100023 is 320001022.

It is not a de Polignac number, because 220100023 - 2⁹ = 220099511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220099982 and 220100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365923 + ... + 366523.

It is an arithmetic number, because the mean of its divisors is an integer number (10906434).

Almost surely, 2^220100023 is an apocalyptic number.

220100023 is a deficient number, since it is larger than the sum of its proper divisors (41654393).

220100023 is a wasteful number, since it uses less digits than its factorization.

220100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 822 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 220100023 is about 14835.7683656762. The cubic root of 220100023 is about 603.7725476850.

Adding to 220100023 its reverse (320001022), we get a palindrome (540101045).

Subtracting 220100023 from its reverse (320001022), we obtain a palindrome (99900999).

The spelling of 220100023 in words is "two hundred twenty million, one hundred thousand, twenty-three".