212612023 has 16 divisors (see below), whose sum is σ = 242859456. Its totient is φ = 184631040.

The previous prime is 212612017. The next prime is 212612041. The reversal of 212612023 is 320216212.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212612023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212612003) 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, 12411 + ... + 24067.

It is an arithmetic number, because the mean of its divisors is an integer number (15178716).

Almost surely, 2^212612023 is an apocalyptic number.

212612023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212612023 is a deficient number, since it is larger than the sum of its proper divisors (30247433).

212612023 is a wasteful number, since it uses less digits than its factorization.

212612023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11754.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 212612023 is about 14581.2215880563. The cubic root of 212612023 is about 596.8464383800.

Adding to 212612023 its reverse (320216212), we get a palindrome (532828235).

The spelling of 212612023 in words is "two hundred twelve million, six hundred twelve thousand, twenty-three".