30143142442 has 32 divisors (see below), whose sum is σ = 55484248320. Its totient is φ = 11987324160.

The previous prime is 30143142437. The next prime is 30143142481. The reversal of 30143142442 is 24424134103.

It is a self number, because there is not a number n which added to its sum of digits gives 30143142442.

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 in 15 ways as a sum of consecutive naturals, for example, 875017 + ... + 908812.

It is an arithmetic number, because the mean of its divisors is an integer number (1733882760).

Almost surely, 2^30143142442 is an apocalyptic number.

30143142442 is a deficient number, since it is larger than the sum of its proper divisors (25341105878).

30143142442 is a wasteful number, since it uses less digits than its factorization.

30143142442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783926.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 30143142442 its reverse (24424134103), we get a palindrome (54567276545).

The spelling of 30143142442 in words is "thirty billion, one hundred forty-three million, one hundred forty-two thousand, four hundred forty-two".