342121321311 has 128 divisors (see below), whose sum is σ = 617912451072. Its totient is φ = 163126656000.

The previous prime is 342121321279. The next prime is 342121321337. The reversal of 342121321311 is 113123121243.

It is not a de Polignac number, because 342121321311 - 2⁵ = 342121321279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (342121321351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13274940 + ... + 13300686.

It is an arithmetic number, because the mean of its divisors is an integer number (4827441024).

Almost surely, 2^342121321311 is an apocalyptic number.

342121321311 is a deficient number, since it is larger than the sum of its proper divisors (275791129761).

342121321311 is a wasteful number, since it uses less digits than its factorization.

342121321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25893.

The product of its digits is 864, while the sum is 24.

Adding to 342121321311 its reverse (113123121243), we get a palindrome (455244442554).

The spelling of 342121321311 in words is "three hundred forty-two billion, one hundred twenty-one million, three hundred twenty-one thousand, three hundred eleven".