30442140019 has 4 divisors (see below), whose sum is σ = 30460059400. Its totient is φ = 30424220640.

The previous prime is 30442140011. The next prime is 30442140031. The reversal of 30442140019 is 91004124403.

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

It is a cyclic number.

It is not a de Polignac number, because 30442140019 - 2³ = 30442140011 is a prime.

It is a super-2 number, since 2×30442140019² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30442140011) 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, 8957142 + ... + 8960539.

It is an arithmetic number, because the mean of its divisors is an integer number (7615014850).

Almost surely, 2^30442140019 is an apocalyptic number.

30442140019 is a deficient number, since it is larger than the sum of its proper divisors (17919381).

30442140019 is a wasteful number, since it uses less digits than its factorization.

30442140019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17919380.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 30442140019 in words is "thirty billion, four hundred forty-two million, one hundred forty thousand, nineteen".