2123112021130 has 64 divisors (see below), whose sum is σ = 4005592528896. Its totient is φ = 808691400000.

The previous prime is 2123112021113. The next prime is 2123112021131. The reversal of 2123112021130 is 311202113212.

It is a junction number, because it is equal to n+sod(n) for n = 2123112021098 and 2123112021107.

It is not an unprimeable number, because it can be changed into a prime (2123112021131) by changing a digit.

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, 136870075 + ... + 136885585.

It is an arithmetic number, because the mean of its divisors is an integer number (62587383264).

Almost surely, 2^{2123112021130} is an apocalyptic number.

2123112021130 is a deficient number, since it is larger than the sum of its proper divisors (1882480507766).

2123112021130 is a wasteful number, since it uses less digits than its factorization.

2123112021130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18163.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2123112021130 its reverse (311202113212), we get a palindrome (2434314134342).

It can be divided in two parts, 212311 and 2021130, that added together give a triangular number (2233441 = T₂₁₁₃).

The spelling of 2123112021130 in words is "two trillion, one hundred twenty-three billion, one hundred twelve million, twenty-one thousand, one hundred thirty".