30142543305 has 64 divisors (see below), whose sum is σ = 58182336000. Its totient is φ = 13304229120.

The previous prime is 30142543289. The next prime is 30142543309. The reversal of 30142543305 is 50334524103.

It is not a de Polignac number, because 30142543305 - 2⁴ = 30142543289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30142543309) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48195 + ... + 250215.

It is an arithmetic number, because the mean of its divisors is an integer number (909099000).

Almost surely, 2^30142543305 is an apocalyptic number.

30142543305 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30142543305 is a deficient number, since it is larger than the sum of its proper divisors (28039792695).

30142543305 is a wasteful number, since it uses less digits than its factorization.

30142543305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202079 (or 202065 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 30142543305 in words is "thirty billion, one hundred forty-two million, five hundred forty-three thousand, three hundred five".