2311101022121 has 2 divisors, whose sum is σ = 2311101022122. Its totient is φ = 2311101022120.

The previous prime is 2311101022079. The next prime is 2311101022127. The reversal of 2311101022121 is 1212201011132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2211585379600 + 99515642521 = 1487140^2 + 315461^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311101022121 - 2²² = 2311096827817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311101022121.

It is not a weakly prime, because it can be changed into another prime (2311101022127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155550511060 + 1155550511061.

It is an arithmetic number, because the mean of its divisors is an integer number (1155550511061).

Almost surely, 2^{2311101022121} is an apocalyptic number.

It is an amenable number.

2311101022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311101022121 is an equidigital number, since it uses as much as digits as its factorization.

2311101022121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 2311101022121 its reverse (1212201011132), we get a palindrome (3523302033253).

The spelling of 2311101022121 in words is "two trillion, three hundred eleven billion, one hundred one million, twenty-two thousand, one hundred twenty-one".