2121342422311 has 4 divisors (see below), whose sum is σ = 2424391339792. Its totient is φ = 1818293504832.

The previous prime is 2121342422291. The next prime is 2121342422327. The reversal of 2121342422311 is 1132242431212.

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

It is not a de Polignac number, because 2121342422311 - 2⁵ = 2121342422279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2121342422311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121342425311) 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, 151524458730 + ... + 151524458743.

It is an arithmetic number, because the mean of its divisors is an integer number (606097834948).

Almost surely, 2^{2121342422311} is an apocalyptic number.

2121342422311 is a deficient number, since it is larger than the sum of its proper divisors (303048917481).

2121342422311 is an equidigital number, since it uses as much as digits as its factorization.

2121342422311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303048917480.

The product of its digits is 4608, while the sum is 28.

Adding to 2121342422311 its reverse (1132242431212), we get a palindrome (3253584853523).

The spelling of 2121342422311 in words is "two trillion, one hundred twenty-one billion, three hundred forty-two million, four hundred twenty-two thousand, three hundred eleven".