2123551124 has 12 divisors (see below), whose sum is σ = 3934815444. Its totient is φ = 999318144.

The previous prime is 2123551117. The next prime is 2123551127. The reversal of 2123551124 is 4211553212.

It can be written as a sum of positive squares in 2 ways, for example, as 1654048900 + 469502224 = 40670^2 + 21668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2123551093 and 2123551102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123551127) 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, 15614279 + ... + 15614414.

It is an arithmetic number, because the mean of its divisors is an integer number (327901287).

Almost surely, 2^2123551124 is an apocalyptic number.

It is an amenable number.

2123551124 is a deficient number, since it is larger than the sum of its proper divisors (1811264320).

2123551124 is a wasteful number, since it uses less digits than its factorization.

2123551124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31228714 (or 31228712 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 2123551124 is about 46082.0043400892. The cubic root of 2123551124 is about 1285.3485353125.

The spelling of 2123551124 in words is "two billion, one hundred twenty-three million, five hundred fifty-one thousand, one hundred twenty-four".