42102205039 has 2 divisors, whose sum is σ = 42102205040. Its totient is φ = 42102205038.

The previous prime is 42102205001. The next prime is 42102205073. The reversal of 42102205039 is 93050220124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42102205039 - 2¹⁵ = 42102172271 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42102204998 and 42102205016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42100205039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21051102519 + 21051102520.

It is an arithmetic number, because the mean of its divisors is an integer number (21051102520).

Almost surely, 2^42102205039 is an apocalyptic number.

42102205039 is a deficient number, since it is larger than the sum of its proper divisors (1).

42102205039 is an equidigital number, since it uses as much as digits as its factorization.

42102205039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 42102205039 in words is "forty-two billion, one hundred two million, two hundred five thousand, thirty-nine".