2002101200123 has 2 divisors, whose sum is σ = 2002101200124. Its totient is φ = 2002101200122.

The previous prime is 2002101200081. The next prime is 2002101200153. The reversal of 2002101200123 is 3210021012002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2002101200123 - 2⁸ = 2002101199867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002101200098 and 2002101200107.

It is not a weakly prime, because it can be changed into another prime (2002101200153) 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 as a sum of consecutive naturals, namely, 1001050600061 + 1001050600062.

It is an arithmetic number, because the mean of its divisors is an integer number (1001050600062).

Almost surely, 2^{2002101200123} is an apocalyptic number.

2002101200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002101200123 is an equidigital number, since it uses as much as digits as its factorization.

2002101200123 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 2002101200123 its reverse (3210021012002), we get a palindrome (5212122212125).

The spelling of 2002101200123 in words is "two trillion, two billion, one hundred one million, two hundred thousand, one hundred twenty-three".