2002343250021 has 4 divisors (see below), whose sum is σ = 2669791000032. Its totient is φ = 1334895500012.

The previous prime is 2002343250001. The next prime is 2002343250029. The reversal of 2002343250021 is 1200523432002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2002343250021 - 2⁶ = 2002343249957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2002343249973 and 2002343250000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002343250029) 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, 333723875001 + ... + 333723875006.

It is an arithmetic number, because the mean of its divisors is an integer number (667447750008).

Almost surely, 2^{2002343250021} is an apocalyptic number.

It is an amenable number.

2002343250021 is a deficient number, since it is larger than the sum of its proper divisors (667447750011).

2002343250021 is an equidigital number, since it uses as much as digits as its factorization.

2002343250021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667447750010.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 2002343250021 its reverse (1200523432002), we get a palindrome (3202866682023).

The spelling of 2002343250021 in words is "two trillion, two billion, three hundred forty-three million, two hundred fifty thousand, twenty-one".