2002102210123 has 4 divisors (see below), whose sum is σ = 2003692443480. Its totient is φ = 2000511976768.

The previous prime is 2002102210111. The next prime is 2002102210169. The reversal of 2002102210123 is 3210122012002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2002102210123 - 2¹⁷ = 2002102079051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002102210097 and 2002102210106.

It is not an unprimeable number, because it can be changed into a prime (2002102210103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795114790 + ... + 795117307.

It is an arithmetic number, because the mean of its divisors is an integer number (500923110870).

Almost surely, 2^{2002102210123} is an apocalyptic number.

2002102210123 is a deficient number, since it is larger than the sum of its proper divisors (1590233357).

2002102210123 is a wasteful number, since it uses less digits than its factorization.

2002102210123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1590233356.

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

Adding to 2002102210123 its reverse (3210122012002), we get a palindrome (5212224222125).

The spelling of 2002102210123 in words is "two trillion, two billion, one hundred two million, two hundred ten thousand, one hundred twenty-three".