2311320311121 has 16 divisors (see below), whose sum is σ = 3110640309504. Its totient is φ = 1526440986384.

The previous prime is 2311320311119. The next prime is 2311320311161. The reversal of 2311320311121 is 1211130231132.

It is not a de Polignac number, because 2311320311121 - 2¹ = 2311320311119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2311320311161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18750130 + ... + 18872996.

It is an arithmetic number, because the mean of its divisors is an integer number (194415019344).

Almost surely, 2^{2311320311121} is an apocalyptic number.

It is an amenable number.

2311320311121 is a deficient number, since it is larger than the sum of its proper divisors (799319998383).

2311320311121 is a wasteful number, since it uses less digits than its factorization.

2311320311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181580.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2311320311121 its reverse (1211130231132), we get a palindrome (3522450542253).

The spelling of 2311320311121 in words is "two trillion, three hundred eleven billion, three hundred twenty million, three hundred eleven thousand, one hundred twenty-one".