20130002279 has 2 divisors, whose sum is σ = 20130002280. Its totient is φ = 20130002278.

The previous prime is 20130002273. The next prime is 20130002281. The reversal of 20130002279 is 97220003102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130002279 is a prime.

Together with 20130002281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130002273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065001139 + 10065001140.

It is an arithmetic number, because the mean of its divisors is an integer number (10065001140).

Almost surely, 2^20130002279 is an apocalyptic number.

20130002279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130002279 is an equidigital number, since it uses as much as digits as its factorization.

20130002279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 20130002279 in words is "twenty billion, one hundred thirty million, two thousand, two hundred seventy-nine".