2123120012002 has 16 divisors (see below), whose sum is σ = 3568093584192. Its totient is φ = 938971995120.

The previous prime is 2123120011967. The next prime is 2123120012009. The reversal of 2123120012002 is 2002100213212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2123120012009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304126958 + ... + 1304128585.

It is an arithmetic number, because the mean of its divisors is an integer number (223005849012).

Almost surely, 2^{2123120012002} is an apocalyptic number.

2123120012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2123120012002 is a deficient number, since it is larger than the sum of its proper divisors (1444973572190).

2123120012002 is a wasteful number, since it uses less digits than its factorization.

2123120012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608255593.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2123120012002 its reverse (2002100213212), we get a palindrome (4125220225214).

The spelling of 2123120012002 in words is "two trillion, one hundred twenty-three billion, one hundred twenty million, twelve thousand, two".