2002681123 has 2 divisors, whose sum is σ = 2002681124. Its totient is φ = 2002681122.

The previous prime is 2002681117. The next prime is 2002681147. The reversal of 2002681123 is 3211862002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2002681123 is a prime.

It is a super-2 number, since 2×2002681123² = 8021463360841082258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2002681103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001340561 + 1001340562.

It is an arithmetic number, because the mean of its divisors is an integer number (1001340562).

Almost surely, 2^2002681123 is an apocalyptic number.

2002681123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002681123 is an equidigital number, since it uses as much as digits as its factorization.

2002681123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2002681123 is about 44751.3253770210. The cubic root of 2002681123 is about 1260.4837990540.

The spelling of 2002681123 in words is "two billion, two million, six hundred eighty-one thousand, one hundred twenty-three".