2311323121101 has 32 divisors (see below), whose sum is σ = 3260324390400. Its totient is φ = 1454782545920.

The previous prime is 2311323121097. The next prime is 2311323121103. The reversal of 2311323121101 is 1011213231132.

It is not a de Polignac number, because 2311323121101 - 2² = 2311323121097 is a prime.

It is a super-2 number, since 2×2311323121101² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311323121103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731636 + ... + 2760653.

It is an arithmetic number, because the mean of its divisors is an integer number (101885137200).

Almost surely, 2^{2311323121101} is an apocalyptic number.

It is an amenable number.

2311323121101 is a deficient number, since it is larger than the sum of its proper divisors (949001269299).

2311323121101 is a wasteful number, since it uses less digits than its factorization.

2311323121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4492469.

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

Adding to 2311323121101 its reverse (1011213231132), we get a palindrome (3322536352233).

The spelling of 2311323121101 in words is "two trillion, three hundred eleven billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred one".