212426023 has 16 divisors (see below), whose sum is σ = 228928000. Its totient is φ = 196515072.

The previous prime is 212426021. The next prime is 212426057. The reversal of 212426023 is 320624212.

It is a cyclic number.

It is not a de Polignac number, because 212426023 - 2¹ = 212426021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212425985 and 212426003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212426021) 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, 144868 + ... + 146326.

It is an arithmetic number, because the mean of its divisors is an integer number (14308000).

Almost surely, 2^212426023 is an apocalyptic number.

212426023 is a deficient number, since it is larger than the sum of its proper divisors (16501977).

212426023 is a wasteful number, since it uses less digits than its factorization.

212426023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 212426023 is about 14574.8421260746. The cubic root of 212426023 is about 596.6723406276.

The spelling of 212426023 in words is "two hundred twelve million, four hundred twenty-six thousand, twenty-three".