212313023 has 16 divisors (see below), whose sum is σ = 239232000. Its totient is φ = 186953184.

The previous prime is 212312987. The next prime is 212313029. The reversal of 212313023 is 320313212.

It is a cyclic number.

It is not a de Polignac number, because 212313023 - 2²⁰ = 211264447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212312992 and 212313010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212313029) 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, 148490 + ... + 149912.

It is an arithmetic number, because the mean of its divisors is an integer number (14952000).

Almost surely, 2^212313023 is an apocalyptic number.

212313023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212313023 is a deficient number, since it is larger than the sum of its proper divisors (26918977).

212313023 is a wasteful number, since it uses less digits than its factorization.

212313023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 212313023 is about 14570.9650675582. The cubic root of 212313023 is about 596.5665219329.

Adding to 212313023 its reverse (320313212), we get a palindrome (532626235).

The spelling of 212313023 in words is "two hundred twelve million, three hundred thirteen thousand, twenty-three".