2313121144 has 16 divisors (see below), whose sum is σ = 4340773800. Its totient is φ = 1155581472.

The previous prime is 2313121117. The next prime is 2313121169. The reversal of 2313121144 is 4411213132.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 112299 + ... + 131290.

Almost surely, 2^2313121144 is an apocalyptic number.

It is an amenable number.

2313121144 is a deficient number, since it is larger than the sum of its proper divisors (2027652656).

2313121144 is a wasteful number, since it uses less digits than its factorization.

2313121144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244782 (or 244778 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 2313121144 is about 48094.9180683365. The cubic root of 2313121144 is about 1322.5115070772.

Adding to 2313121144 its reverse (4411213132), we get a palindrome (6724334276).

The spelling of 2313121144 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred forty-four".