42130943999 has 4 divisors (see below), whose sum is σ = 42131580480. Its totient is φ = 42130307520.

The previous prime is 42130943893. The next prime is 42130944019. The reversal of 42130943999 is 99934903124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42130943999 is a prime.

It is a super-2 number, since 2×42130943999² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42130943999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42130945999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205679 + ... + 355760.

It is an arithmetic number, because the mean of its divisors is an integer number (10532895120).

Almost surely, 2^42130943999 is an apocalyptic number.

42130943999 is a deficient number, since it is larger than the sum of its proper divisors (636481).

42130943999 is an equidigital number, since it uses as much as digits as its factorization.

42130943999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636480.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 42130943999 in words is "forty-two billion, one hundred thirty million, nine hundred forty-three thousand, nine hundred ninety-nine".