2312403121 has 16 divisors (see below), whose sum is σ = 2805307776. Its totient is φ = 1860731136.

The previous prime is 2312403103. The next prime is 2312403167. The reversal of 2312403121 is 1213042132.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2312403121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2312403221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22770 + ... + 71716.

It is an arithmetic number, because the mean of its divisors is an integer number (175331736).

Almost surely, 2^2312403121 is an apocalyptic number.

It is an amenable number.

2312403121 is a deficient number, since it is larger than the sum of its proper divisors (492904655).

2312403121 is a wasteful number, since it uses less digits than its factorization.

2312403121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49368.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2312403121 is about 48087.4528437512. The cubic root of 2312403121 is about 1322.3746513034.

Adding to 2312403121 its reverse (1213042132), we get a palindrome (3525445253).

The spelling of 2312403121 in words is "two billion, three hundred twelve million, four hundred three thousand, one hundred twenty-one".