2313122121 has 24 divisors (see below), whose sum is σ = 3488546880. Its totient is φ = 1474145376.

The previous prime is 2313122107. The next prime is 2313122143. The reversal of 2313122121 is 1212213132.

2313122121 is a `hidden beast` number, since 231 + 312 + 2 + 121 = 666.

It is not a de Polignac number, because 2313122121 - 2¹⁵ = 2313089353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2313122094 and 2313122103.

It is not an unprimeable number, because it can be changed into a prime (2313122171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 610210 + ... + 613988.

It is an arithmetic number, because the mean of its divisors is an integer number (145356120).

Almost surely, 2^2313122121 is an apocalyptic number.

It is an amenable number.

2313122121 is a deficient number, since it is larger than the sum of its proper divisors (1175424759).

2313122121 is a wasteful number, since it uses less digits than its factorization.

2313122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765 (or 6762 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2313122121 is about 48094.9282253337. The cubic root of 2313122121 is about 1322.5116932749.

Adding to 2313122121 its reverse (1212213132), we get a palindrome (3525335253).

The spelling of 2313122121 in words is "two billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred twenty-one".