2002106231 has 4 divisors (see below), whose sum is σ = 2089154352. Its totient is φ = 1915058112.

The previous prime is 2002106213. The next prime is 2002106299. The reversal of 2002106231 is 1326012002.

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 2002106231 - 2²⁶ = 1934997367 is a prime.

It is a super-2 number, since 2×2002106231² = 8016858720418050722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002106831) 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, 43524026 + ... + 43524071.

It is an arithmetic number, because the mean of its divisors is an integer number (522288588).

Almost surely, 2^2002106231 is an apocalyptic number.

2002106231 is a deficient number, since it is larger than the sum of its proper divisors (87048121).

2002106231 is an equidigital number, since it uses as much as digits as its factorization.

2002106231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87048120.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2002106231 is about 44744.9017319292. The cubic root of 2002106231 is about 1260.3631755235.

Adding to 2002106231 its reverse (1326012002), we get a palindrome (3328118233).

The spelling of 2002106231 in words is "two billion, two million, one hundred six thousand, two hundred thirty-one".