20102113279 has 2 divisors, whose sum is σ = 20102113280. Its totient is φ = 20102113278.

The previous prime is 20102113237. The next prime is 20102113303. The reversal of 20102113279 is 97231120102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102113279 - 2¹⁷ = 20101982207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20102183279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051056639 + 10051056640.

It is an arithmetic number, because the mean of its divisors is an integer number (10051056640).

Almost surely, 2^20102113279 is an apocalyptic number.

20102113279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102113279 is an equidigital number, since it uses as much as digits as its factorization.

20102113279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The spelling of 20102113279 in words is "twenty billion, one hundred two million, one hundred thirteen thousand, two hundred seventy-nine".