212012201923 has 2 divisors, whose sum is σ = 212012201924. Its totient is φ = 212012201922.

The previous prime is 212012201899. The next prime is 212012202041. The reversal of 212012201923 is 329102210212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212012201923 - 2⁹ = 212012201411 is a prime.

It is not a weakly prime, because it can be changed into another prime (212012202923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006100961 + 106006100962.

It is an arithmetic number, because the mean of its divisors is an integer number (106006100962).

Almost surely, 2^212012201923 is an apocalyptic number.

212012201923 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012201923 is an equidigital number, since it uses as much as digits as its factorization.

212012201923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 212012201923 in words is "two hundred twelve billion, twelve million, two hundred one thousand, nine hundred twenty-three".