2311101000121 has 4 divisors (see below), whose sum is σ = 2332303761700. Its totient is φ = 2289898238544.

The previous prime is 2311101000119. The next prime is 2311101000127. The reversal of 2311101000121 is 1210001011132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 884662519225 + 1426438480896 = 940565^2 + 1194336^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311101000121 - 2¹ = 2311101000119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311101000127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10601380626 + ... + 10601380843.

It is an arithmetic number, because the mean of its divisors is an integer number (583075940425).

Almost surely, 2^{2311101000121} is an apocalyptic number.

It is an amenable number.

2311101000121 is a deficient number, since it is larger than the sum of its proper divisors (21202761579).

2311101000121 is a wasteful number, since it uses less digits than its factorization.

2311101000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21202761578.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 2311101000121 its reverse (1210001011132), we get a palindrome (3521102011253).

The spelling of 2311101000121 in words is "two trillion, three hundred eleven billion, one hundred one million, one hundred twenty-one", and thus it is an aban number.