311330121121 has 8 divisors (see below), whose sum is σ = 311727951080. Its totient is φ = 310932369792.

The previous prime is 311330121119. The next prime is 311330121127. The reversal of 311330121121 is 121121033113.

It can be written as a sum of positive squares in 4 ways, for example, as 278522721 + 311051598400 = 16689^2 + 557720^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311330121121 - 2¹ = 311330121119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311330121127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14515021 + ... + 14536453.

It is an arithmetic number, because the mean of its divisors is an integer number (38965993885).

Almost surely, 2^311330121121 is an apocalyptic number.

It is an amenable number.

311330121121 is a deficient number, since it is larger than the sum of its proper divisors (397829959).

311330121121 is a wasteful number, since it uses less digits than its factorization.

311330121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39315.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 311330121121 its reverse (121121033113), we get a palindrome (432451154234).

The spelling of 311330121121 in words is "three hundred eleven billion, three hundred thirty million, one hundred twenty-one thousand, one hundred twenty-one".