30142504252442 has 16 divisors (see below), whose sum is σ = 45540275344200. Its totient is φ = 14962515008832.

The previous prime is 30142504252391. The next prime is 30142504252477. The reversal of 30142504252442 is 24425240524103.

It can be written as a sum of positive squares in 4 ways, for example, as 10238137684681 + 19904366567761 = 3199709^2 + 4461431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30142504252396 and 30142504252405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25045433 + ... + 26221340.

Almost surely, 2^{30142504252442} is an apocalyptic number.

30142504252442 is a deficient number, since it is larger than the sum of its proper divisors (15397771091758).

30142504252442 is a wasteful number, since it uses less digits than its factorization.

30142504252442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51268897.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 30142504252442 its reverse (24425240524103), we get a palindrome (54567744776545).

The spelling of 30142504252442 in words is "thirty trillion, one hundred forty-two billion, five hundred four million, two hundred fifty-two thousand, four hundred forty-two".