2321110120121 has 24 divisors (see below), whose sum is σ = 2520290588760. Its totient is φ = 2136685824000.

The previous prime is 2321110120067. The next prime is 2321110120141. The reversal of 2321110120121 is 1210210111232.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 1683340174096 + 637769946025 = 1297436^2 + 798605^2 .

It is not a de Polignac number, because 2321110120121 - 2⁶ = 2321110120057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321110120121.

It is not an unprimeable number, because it can be changed into a prime (2321110120141) 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 23 ways as a sum of consecutive naturals, for example, 293770271 + ... + 293778171.

It is an arithmetic number, because the mean of its divisors is an integer number (105012107865).

Almost surely, 2^{2321110120121} is an apocalyptic number.

It is an amenable number.

2321110120121 is a deficient number, since it is larger than the sum of its proper divisors (199180468639).

2321110120121 is a wasteful number, since it uses less digits than its factorization.

2321110120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12477 (or 12464 counting only the distinct ones).

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

Adding to 2321110120121 its reverse (1210210111232), we get a palindrome (3531320231353).

The spelling of 2321110120121 in words is "two trillion, three hundred twenty-one billion, one hundred ten million, one hundred twenty thousand, one hundred twenty-one".