2113243144 has 16 divisors (see below), whose sum is σ = 3979637100. Its totient is φ = 1052006592.

The previous prime is 2113243141. The next prime is 2113243159. The reversal of 2113243144 is 4413423112.

It can be written as a sum of positive squares in 2 ways, for example, as 1572122500 + 541120644 = 39650^2 + 23262^2 .

It is not an unprimeable number, because it can be changed into a prime (2113243141) 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, 574927 + ... + 578590.

Almost surely, 2^2113243144 is an apocalyptic number.

It is an amenable number.

2113243144 is a deficient number, since it is larger than the sum of its proper divisors (1866393956).

2113243144 is a wasteful number, since it uses less digits than its factorization.

2113243144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153752 (or 1153748 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 2113243144 is about 45970.0244072156. The cubic root of 2113243144 is about 1283.2654141301.

Adding to 2113243144 its reverse (4413423112), we get a palindrome (6526666256).

The spelling of 2113243144 in words is "two billion, one hundred thirteen million, two hundred forty-three thousand, one hundred forty-four".