1020020103959 has 2 divisors, whose sum is σ = 1020020103960. Its totient is φ = 1020020103958.

The previous prime is 1020020103937. The next prime is 1020020104031. The reversal of 1020020103959 is 9593010200201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020020103959 - 2¹² = 1020020099863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020020123959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510010051979 + 510010051980.

It is an arithmetic number, because the mean of its divisors is an integer number (510010051980).

Almost surely, 2^{1020020103959} is an apocalyptic number.

1020020103959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020020103959 is an equidigital number, since it uses as much as digits as its factorization.

1020020103959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The spelling of 1020020103959 in words is "one trillion, twenty billion, twenty million, one hundred three thousand, nine hundred fifty-nine".