2331124121 has 4 divisors (see below), whose sum is σ = 2351753652. Its totient is φ = 2310494592.

The previous prime is 2331124093. The next prime is 2331124157. The reversal of 2331124121 is 1214211332.

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 1236506896 + 1094617225 = 35164^2 + 33085^2 .

It is a cyclic number.

It is not a de Polignac number, because 2331124121 - 2⁶ = 2331124057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2331124093 and 2331124102.

It is not an unprimeable number, because it can be changed into a prime (2331124181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10314596 + ... + 10314821.

It is an arithmetic number, because the mean of its divisors is an integer number (587938413).

Almost surely, 2^2331124121 is an apocalyptic number.

It is an amenable number.

2331124121 is a deficient number, since it is larger than the sum of its proper divisors (20629531).

2331124121 is a wasteful number, since it uses less digits than its factorization.

2331124121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20629530.

The product of its digits is 288, while the sum is 20.

The square root of 2331124121 is about 48281.7162184610. The cubic root of 2331124121 is about 1325.9336712968.

Adding to 2331124121 its reverse (1214211332), we get a palindrome (3545335453).

The spelling of 2331124121 in words is "two billion, three hundred thirty-one million, one hundred twenty-four thousand, one hundred twenty-one".