2002031221123 has 8 divisors (see below), whose sum is σ = 2211962884128. Its totient is φ = 1802340127104.

The previous prime is 2002031221117. The next prime is 2002031221153. The reversal of 2002031221123 is 3211221302002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002031221123 - 2²¹ = 2002029123971 is a prime.

It is a super-2 number, since 2×2002031221123² (a number of 25 digits) contains 22 as substring.

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 2002031221123.

It is not an unprimeable number, because it can be changed into a prime (2002031221153) 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 in 7 ways as a sum of consecutive naturals, for example, 2560141836 + ... + 2560142617.

It is an arithmetic number, because the mean of its divisors is an integer number (276495360516).

Almost surely, 2^{2002031221123} is an apocalyptic number.

2002031221123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2002031221123 is a deficient number, since it is larger than the sum of its proper divisors (209931663005).

2002031221123 is a wasteful number, since it uses less digits than its factorization.

2002031221123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120284493.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2002031221123 its reverse (3211221302002), we get a palindrome (5213252523125).

The spelling of 2002031221123 in words is "two trillion, two billion, thirty-one million, two hundred twenty-one thousand, one hundred twenty-three".