2002020322123 has 4 divisors (see below), whose sum is σ = 2002129424568. Its totient is φ = 2001911219680.

The previous prime is 2002020322121. The next prime is 2002020322139. The reversal of 2002020322123 is 3212230202002.

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 2002020322123 - 2¹ = 2002020322121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2002020322123.

It is not an unprimeable number, because it can be changed into a prime (2002020322121) 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, 54523693 + ... + 54560398.

It is an arithmetic number, because the mean of its divisors is an integer number (500532356142).

Almost surely, 2^{2002020322123} is an apocalyptic number.

2002020322123 is a deficient number, since it is larger than the sum of its proper divisors (109102445).

2002020322123 is a wasteful number, since it uses less digits than its factorization.

2002020322123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109102444.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 2002020322123 its reverse (3212230202002), we get a palindrome (5214250524125).

The spelling of 2002020322123 in words is "two trillion, two billion, twenty million, three hundred twenty-two thousand, one hundred twenty-three".