30444331142 has 16 divisors (see below), whose sum is σ = 49242438000. Its totient is φ = 14069266560.

The previous prime is 30444331129. The next prime is 30444331147. The reversal of 30444331142 is 24113344403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444331147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9768767 + ... + 9771882.

It is an arithmetic number, because the mean of its divisors is an integer number (3077652375).

Almost surely, 2^30444331142 is an apocalyptic number.

30444331142 is a deficient number, since it is larger than the sum of its proper divisors (18798106858).

30444331142 is a wasteful number, since it uses less digits than its factorization.

30444331142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19540711.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 30444331142 its reverse (24113344403), we get a palindrome (54557675545).

The spelling of 30444331142 in words is "thirty billion, four hundred forty-four million, three hundred thirty-one thousand, one hundred forty-two".