2123123113210 has 48 divisors (see below), whose sum is σ = 4214962708488. Its totient is φ = 769409674880.

The previous prime is 2123123113187. The next prime is 2123123113229. The reversal of 2123123113210 is 123113213212.

It can be written as a sum of positive squares in 4 ways, for example, as 1984044090721 + 139079022489 = 1408561^2 + 372933^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2639749 + ... + 3348808.

Almost surely, 2^{2123123113210} is an apocalyptic number.

2123123113210 is a deficient number, since it is larger than the sum of its proper divisors (2091839595278).

2123123113210 is a wasteful number, since it uses less digits than its factorization.

2123123113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5988879 (or 5988868 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2123123113210 its reverse (123113213212), we get a palindrome (2246236326422).

The spelling of 2123123113210 in words is "two trillion, one hundred twenty-three billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred ten".