2123023130 has 16 divisors (see below), whose sum is σ = 3843534024. Its totient is φ = 844299840.

The previous prime is 2123023117. The next prime is 2123023141. The reversal of 2123023130 is 313203212.

It can be written as a sum of positive squares in 4 ways, for example, as 1977314089 + 145709041 = 44467^2 + 12071^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2123023099 and 2123023108.

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, 611861 + ... + 615320.

Almost surely, 2^2123023130 is an apocalyptic number.

2123023130 is a deficient number, since it is larger than the sum of its proper divisors (1720510894).

2123023130 is a wasteful number, since it uses less digits than its factorization.

2123023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227361.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2123023130 is about 46076.2751315685. The cubic root of 2123023130 is about 1285.2419979561.

Adding to 2123023130 its reverse (313203212), we get a palindrome (2436226342).

The spelling of 2123023130 in words is "two billion, one hundred twenty-three million, twenty-three thousand, one hundred thirty".