2331400121 has 8 divisors (see below), whose sum is σ = 2341551240. Its totient is φ = 2321264512.

The previous prime is 2331400109. The next prime is 2331400151. The reversal of 2331400121 is 1210041332.

It can be written as a sum of positive squares in 4 ways, for example, as 513656896 + 1817743225 = 22664^2 + 42635^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331400121 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 2331400121.

It is not an unprimeable number, because it can be changed into a prime (2331400151) 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 7 ways as a sum of consecutive naturals, for example, 374591 + ... + 380763.

It is an arithmetic number, because the mean of its divisors is an integer number (292693905).

Almost surely, 2^2331400121 is an apocalyptic number.

It is an amenable number.

2331400121 is a deficient number, since it is larger than the sum of its proper divisors (10151119).

2331400121 is a wasteful number, since it uses less digits than its factorization.

2331400121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2331400121 is about 48284.5743586914. The cubic root of 2331400121 is about 1325.9859984477.

Adding to 2331400121 its reverse (1210041332), we get a palindrome (3541441453).

The spelling of 2331400121 in words is "two billion, three hundred thirty-one million, four hundred thousand, one hundred twenty-one".