30431334242 has 4 divisors (see below), whose sum is σ = 45647001366. Its totient is φ = 15215667120.

The previous prime is 30431334229. The next prime is 30431334253. The reversal of 30431334242 is 24243313403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20892100681 + 9539233561 = 144541^2 + 97669^2 .

It is a super-2 number, since 2×30431334242² (a number of 22 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 7607833559 + ... + 7607833562.

Almost surely, 2^30431334242 is an apocalyptic number.

30431334242 is a deficient number, since it is larger than the sum of its proper divisors (15215667124).

30431334242 is a wasteful number, since it uses less digits than its factorization.

30431334242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15215667123.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 30431334242 its reverse (24243313403), we get a palindrome (54674647645).

The spelling of 30431334242 in words is "thirty billion, four hundred thirty-one million, three hundred thirty-four thousand, two hundred forty-two".