2123113444 has 6 divisors (see below), whose sum is σ = 3715448534. Its totient is φ = 1061556720.

The previous prime is 2123113441. The next prime is 2123113471. The reversal of 2123113444 is 4443113212.

It can be written as a sum of positive squares in only one way, i.e., 1521000000 + 602113444 = 39000^2 + 24538^2 .

It is a super-2 number, since 2×2123113444² = 9015221392187082272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123113441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265389177 + ... + 265389184.

Almost surely, 2^2123113444 is an apocalyptic number.

It is an amenable number.

2123113444 is a deficient number, since it is larger than the sum of its proper divisors (1592335090).

2123113444 is a wasteful number, since it uses less digits than its factorization.

2123113444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530778365 (or 530778363 counting only the distinct ones).

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

The square root of 2123113444 is about 46077.2551699860. The cubic root of 2123113444 is about 1285.2602225495.

Adding to 2123113444 its reverse (4443113212), we get a palindrome (6566226656).

The spelling of 2123113444 in words is "two billion, one hundred twenty-three million, one hundred thirteen thousand, four hundred forty-four".