2123533144 has 32 divisors (see below), whose sum is σ = 4157244000. Its totient is φ = 1014990592.

The previous prime is 2123533129. The next prime is 2123533151. The reversal of 2123533144 is 4413353212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500022 + ... + 504250.

It is an arithmetic number, because the mean of its divisors is an integer number (129913875).

Almost surely, 2^2123533144 is an apocalyptic number.

It is an amenable number.

2123533144 is a deficient number, since it is larger than the sum of its proper divisors (2033710856).

2123533144 is a wasteful number, since it uses less digits than its factorization.

2123533144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6987 (or 6983 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 2123533144 is about 46081.8092526758. The cubic root of 2123533144 is about 1285.3449076419.

Adding to 2123533144 its reverse (4413353212), we get a palindrome (6536886356).

The spelling of 2123533144 in words is "two billion, one hundred twenty-three million, five hundred thirty-three thousand, one hundred forty-four".