30142516305 has 24 divisors (see below), whose sum is σ = 53010974016. Its totient is φ = 14614552480.

The previous prime is 30142516291. The next prime is 30142516307. The reversal of 30142516305 is 50361524103.

It is not a de Polignac number, because 30142516305 - 2⁴ = 30142516289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30142516307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8301909 + ... + 8305538.

It is an arithmetic number, because the mean of its divisors is an integer number (2208790584).

Almost surely, 2^30142516305 is an apocalyptic number.

It is an amenable number.

30142516305 is a deficient number, since it is larger than the sum of its proper divisors (22868457711).

30142516305 is a wasteful number, since it uses less digits than its factorization.

30142516305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16607477 (or 16607466 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 30142516305 in words is "thirty billion, one hundred forty-two million, five hundred sixteen thousand, three hundred five".