30535221243 has 4 divisors (see below), whose sum is σ = 40713628328. Its totient is φ = 20356814160.

The previous prime is 30535221209. The next prime is 30535221253. The reversal of 30535221243 is 34212253503.

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

It is not a de Polignac number, because 30535221243 - 2⁸ = 30535220987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30535221243.

It is not an unprimeable number, because it can be changed into a prime (30535221253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5089203538 + ... + 5089203543.

It is an arithmetic number, because the mean of its divisors is an integer number (10178407082).

Almost surely, 2^30535221243 is an apocalyptic number.

30535221243 is a deficient number, since it is larger than the sum of its proper divisors (10178407085).

30535221243 is a wasteful number, since it uses less digits than its factorization.

30535221243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178407084.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 30535221243 its reverse (34212253503), we get a palindrome (64747474746).

The spelling of 30535221243 in words is "thirty billion, five hundred thirty-five million, two hundred twenty-one thousand, two hundred forty-three".