2123312272 has 20 divisors (see below), whose sum is σ = 4114637440. Its totient is φ = 1061470368.

The previous prime is 2123312221. The next prime is 2123312281. The reversal of 2123312272 is 2722133212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156013 + ... + 169075.

It is an arithmetic number, because the mean of its divisors is an integer number (205731872).

Almost surely, 2^2123312272 is an apocalyptic number.

It is an amenable number.

2123312272 is a deficient number, since it is larger than the sum of its proper divisors (1991325168).

2123312272 is a wasteful number, since it uses less digits than its factorization.

2123312272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23230 (or 23224 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 2123312272 is about 46079.4126698681. The cubic root of 2123312272 is about 1285.3003425195.

Adding to 2123312272 its reverse (2722133212), we get a palindrome (4845445484).

The spelling of 2123312272 in words is "two billion, one hundred twenty-three million, three hundred twelve thousand, two hundred seventy-two".