30142254502 has 4 divisors (see below), whose sum is σ = 45213381756. Its totient is φ = 15071127250.

The previous prime is 30142254497. The next prime is 30142254511. The reversal of 30142254502 is 20545224103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20545224103 = 3457 ⋅5943079.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7535563624 + ... + 7535563627.

It is an arithmetic number, because the mean of its divisors is an integer number (11303345439).

Almost surely, 2^30142254502 is an apocalyptic number.

30142254502 is a deficient number, since it is larger than the sum of its proper divisors (15071127254).

30142254502 is a wasteful number, since it uses less digits than its factorization.

30142254502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15071127253.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 30142254502 its reverse (20545224103), we get a palindrome (50687478605).

The spelling of 30142254502 in words is "thirty billion, one hundred forty-two million, two hundred fifty-four thousand, five hundred two".