1021112039 has 2 divisors, whose sum is σ = 1021112040. Its totient is φ = 1021112038.

The previous prime is 1021112017. The next prime is 1021112047. The reversal of 1021112039 is 9302111201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021112039 is a prime.

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1021112039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021132039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510556019 + 510556020.

It is an arithmetic number, because the mean of its divisors is an integer number (510556020).

Almost surely, 2^1021112039 is an apocalyptic number.

1021112039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021112039 is an equidigital number, since it uses as much as digits as its factorization.

1021112039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1021112039 is about 31954.8437486400. The cubic root of 1021112039 is about 1006.9883949044.

The spelling of 1021112039 in words is "one billion, twenty-one million, one hundred twelve thousand, thirty-nine".