212123010323311 has 4 divisors (see below), whose sum is σ = 212124079620072. Its totient is φ = 212121941026552.

The previous prime is 212123010323297. The next prime is 212123010323401. The reversal of 212123010323311 is 113323010321212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212123010323311 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 (212123010323911) 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, 534350761 + ... + 534747586.

It is an arithmetic number, because the mean of its divisors is an integer number (53031019905018).

Almost surely, 2^{212123010323311} is an apocalyptic number.

212123010323311 is a deficient number, since it is larger than the sum of its proper divisors (1069296761).

212123010323311 is a wasteful number, since it uses less digits than its factorization.

212123010323311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069296760.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 212123010323311 its reverse (113323010321212), we get a palindrome (325446020644523).

The spelling of 212123010323311 in words is "two hundred twelve trillion, one hundred twenty-three billion, ten million, three hundred twenty-three thousand, three hundred eleven".