311121104135 has 16 divisors (see below), whose sum is σ = 374019902784. Its totient is φ = 248447576832.

The previous prime is 311121104101. The next prime is 311121104141. The reversal of 311121104135 is 531401121113.

It is a cyclic number.

It is not a de Polignac number, because 311121104135 - 2¹⁸ = 311120841991 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 311121104135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6292169 + ... + 6341421.

It is an arithmetic number, because the mean of its divisors is an integer number (23376243924).

Almost surely, 2^311121104135 is an apocalyptic number.

311121104135 is a deficient number, since it is larger than the sum of its proper divisors (62898798649).

311121104135 is a wasteful number, since it uses less digits than its factorization.

311121104135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51514.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 311121104135 its reverse (531401121113), we get a palindrome (842522225248).

The spelling of 311121104135 in words is "three hundred eleven billion, one hundred twenty-one million, one hundred four thousand, one hundred thirty-five".