1012002200123 has 2 divisors, whose sum is σ = 1012002200124. Its totient is φ = 1012002200122.

The previous prime is 1012002200087. The next prime is 1012002200149. The reversal of 1012002200123 is 3210022002101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1012002200123 - 2⁶ = 1012002200059 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012002200098 and 1012002200107.

It is not a weakly prime, because it can be changed into another prime (1012002200423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506001100061 + 506001100062.

It is an arithmetic number, because the mean of its divisors is an integer number (506001100062).

Almost surely, 2^{1012002200123} is an apocalyptic number.

1012002200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012002200123 is an equidigital number, since it uses as much as digits as its factorization.

1012002200123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1012002200123 its reverse (3210022002101), we get a palindrome (4222024202224).

The spelling of 1012002200123 in words is "one trillion, twelve billion, two million, two hundred thousand, one hundred twenty-three".