30537321242 has 16 divisors (see below), whose sum is σ = 46086577992. Its totient is φ = 15175229760.

The previous prime is 30537321229. The next prime is 30537321247. The reversal of 30537321242 is 24212373503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16827018961 + 13710302281 = 129719^2 + 117091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30537321199 and 30537321208.

It is not an unprimeable number, because it can be changed into a prime (30537321247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603008 + ... + 651684.

Almost surely, 2^30537321242 is an apocalyptic number.

30537321242 is a deficient number, since it is larger than the sum of its proper divisors (15549256750).

30537321242 is a wasteful number, since it uses less digits than its factorization.

30537321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50593.

The product of its (nonzero) digits is 30240, while the sum is 32.

Adding to 30537321242 its reverse (24212373503), we get a palindrome (54749694745).

The spelling of 30537321242 in words is "thirty billion, five hundred thirty-seven million, three hundred twenty-one thousand, two hundred forty-two".