2123243042130 has 64 divisors (see below), whose sum is σ = 6470835943680. Its totient is φ = 485312694912.

The previous prime is 2123243042111. The next prime is 2123243042203. The reversal of 2123243042130 is 312403423212.

2123243042130 is a `hidden beast` number, since 2 + 1 + 2 + 324 + 304 + 2 + 1 + 30 = 666.

It is a super-2 number, since 2×2123243042130² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2123243042094 and 2123243042103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561702619 + ... + 561706398.

It is an arithmetic number, because the mean of its divisors is an integer number (101106811620).

Almost surely, 2^{2123243042130} is an apocalyptic number.

2123243042130 is an abundant number, since it is smaller than the sum of its proper divisors (4347592901550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123243042130 is a wasteful number, since it uses less digits than its factorization.

2123243042130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123409040 (or 1123409034 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 2123243042130 its reverse (312403423212), we get a palindrome (2435646465342).

The spelling of 2123243042130 in words is "two trillion, one hundred twenty-three billion, two hundred forty-three million, forty-two thousand, one hundred thirty".