1020113279 has 2 divisors, whose sum is σ = 1020113280. Its totient is φ = 1020113278.

The previous prime is 1020113261. The next prime is 1020113293. The reversal of 1020113279 is 9723110201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020113279 is a prime.

It is a super-2 number, since 2×1020113279² = 2081262203984263682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020113299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510056639 + 510056640.

It is an arithmetic number, because the mean of its divisors is an integer number (510056640).

Almost surely, 2^1020113279 is an apocalyptic number.

1020113279 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020113279 is an equidigital number, since it uses as much as digits as its factorization.

1020113279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1020113279 is about 31939.2122476432. The cubic root of 1020113279 is about 1006.6599726297.

The spelling of 1020113279 in words is "one billion, twenty million, one hundred thirteen thousand, two hundred seventy-nine".