213110023 has 16 divisors (see below), whose sum is σ = 257022720. Its totient is φ = 172613376.

The previous prime is 213109993. The next prime is 213110033. The reversal of 213110023 is 320011312.

It is a cyclic number.

It is not a de Polignac number, because 213110023 - 2⁵ = 213109991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213109985 and 213110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213110033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57111 + ... + 60727.

It is an arithmetic number, because the mean of its divisors is an integer number (16063920).

Almost surely, 2^213110023 is an apocalyptic number.

213110023 is a deficient number, since it is larger than the sum of its proper divisors (43912697).

213110023 is a wasteful number, since it uses less digits than its factorization.

213110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213110023 is about 14598.2883585714. The cubic root of 213110023 is about 597.3120717549.

Adding to 213110023 its reverse (320011312), we get a palindrome (533121335).

The spelling of 213110023 in words is "two hundred thirteen million, one hundred ten thousand, twenty-three".