2002221323123 has 16 divisors (see below), whose sum is σ = 2309234780160. Its totient is φ = 1700462956416.

The previous prime is 2002221323117. The next prime is 2002221323129. The reversal of 2002221323123 is 3213231222002.

It is an interprime number because it is at equal distance from previous prime (2002221323117) and next prime (2002221323129).

It is not a de Polignac number, because 2002221323123 - 2¹⁶ = 2002221257587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002221323129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2105468 + ... + 2904726.

It is an arithmetic number, because the mean of its divisors is an integer number (144327173760).

Almost surely, 2^{2002221323123} is an apocalyptic number.

2002221323123 is a deficient number, since it is larger than the sum of its proper divisors (307013457037).

2002221323123 is a wasteful number, since it uses less digits than its factorization.

2002221323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802546.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2002221323123 its reverse (3213231222002), we get a palindrome (5215452545125).

The spelling of 2002221323123 in words is "two trillion, two billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred twenty-three".