212013432032123 has 4 divisors (see below), whose sum is σ = 215177811614760. Its totient is φ = 208849052449488.

The previous prime is 212013432032063. The next prime is 212013432032147. The reversal of 212013432032123 is 321230234310212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212013432032123 - 2¹⁰ = 212013432031099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212013432032173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582189791218 + ... + 1582189791351.

It is an arithmetic number, because the mean of its divisors is an integer number (53794452903690).

Almost surely, 2^{212013432032123} is an apocalyptic number.

212013432032123 is a deficient number, since it is larger than the sum of its proper divisors (3164379582637).

212013432032123 is an equidigital number, since it uses as much as digits as its factorization.

212013432032123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164379582636.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 212013432032123 its reverse (321230234310212), we get a palindrome (533243666342335).

The spelling of 212013432032123 in words is "two hundred twelve trillion, thirteen billion, four hundred thirty-two million, thirty-two thousand, one hundred twenty-three".