2002102123231 has 4 divisors (see below), whose sum is σ = 2288116712272. Its totient is φ = 1716087534192.

The previous prime is 2002102123187. The next prime is 2002102123243. The reversal of 2002102123231 is 1323212012002.

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 2002102123231 - 2⁷ = 2002102123103 is a prime.

It is a super-2 number, since 2×2002102123231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002102123199 and 2002102123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002102123271) 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, 143007294510 + ... + 143007294523.

It is an arithmetic number, because the mean of its divisors is an integer number (572029178068).

Almost surely, 2^{2002102123231} is an apocalyptic number.

2002102123231 is a deficient number, since it is larger than the sum of its proper divisors (286014589041).

2002102123231 is an equidigital number, since it uses as much as digits as its factorization.

2002102123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286014589040.

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

Adding to 2002102123231 its reverse (1323212012002), we get a palindrome (3325314135233).

The spelling of 2002102123231 in words is "two trillion, two billion, one hundred two million, one hundred twenty-three thousand, two hundred thirty-one".