212340023411 has 4 divisors (see below), whose sum is σ = 212340945024. Its totient is φ = 212339101800.

The previous prime is 212340023377. The next prime is 212340023419. The reversal of 212340023411 is 114320043212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212340023411 - 2²⁶ = 212272914547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212340023419) 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, 228206 + ... + 690476.

It is an arithmetic number, because the mean of its divisors is an integer number (53085236256).

Almost surely, 2^212340023411 is an apocalyptic number.

212340023411 is a deficient number, since it is larger than the sum of its proper divisors (921613).

212340023411 is an equidigital number, since it uses as much as digits as its factorization.

212340023411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921612.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 212340023411 its reverse (114320043212), we get a palindrome (326660066623).

The spelling of 212340023411 in words is "two hundred twelve billion, three hundred forty million, twenty-three thousand, four hundred eleven".