2002111121023 has 24 divisors (see below), whose sum is σ = 2264298894000. Its totient is φ = 1767676345344.

The previous prime is 2002111120973. The next prime is 2002111121069. The reversal of 2002111121023 is 3201211112002.

It is a de Polignac number, because none of the positive numbers 2^k-2002111121023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2002111120988 and 2002111121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002111122023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2344498 + ... + 3082351.

It is an arithmetic number, because the mean of its divisors is an integer number (94345787250).

Almost surely, 2^{2002111121023} is an apocalyptic number.

2002111121023 is a deficient number, since it is larger than the sum of its proper divisors (262187772977).

2002111121023 is a wasteful number, since it uses less digits than its factorization.

2002111121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426971 (or 5426958 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2002111121023 its reverse (3201211112002), we get a palindrome (5203322233025).

The spelling of 2002111121023 in words is "two trillion, two billion, one hundred eleven million, one hundred twenty-one thousand, twenty-three".