1020001039 has 2 divisors, whose sum is σ = 1020001040. Its totient is φ = 1020001038.

The previous prime is 1020001013. The next prime is 1020001051. The reversal of 1020001039 is 9301000201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020001039 is a prime.

It is a super-2 number, since 2×1020001039² = 2080804239122159042, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020001439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510000519 + 510000520.

It is an arithmetic number, because the mean of its divisors is an integer number (510000520).

Almost surely, 2^1020001039 is an apocalyptic number.

1020001039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020001039 is an equidigital number, since it uses as much as digits as its factorization.

1020001039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1020001039 is about 31937.4551115144. The cubic root of 1020001039 is about 1006.6230513512.

The spelling of 1020001039 in words is "one billion, twenty million, one thousand, thirty-nine".