30235104521 has 2 divisors, whose sum is σ = 30235104522. Its totient is φ = 30235104520.

The previous prime is 30235104517. The next prime is 30235104533. The reversal of 30235104521 is 12540153203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27768889600 + 2466214921 = 166640^2 + 49661^2 .

It is an emirp because it is prime and its reverse (12540153203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30235104521 - 2² = 30235104517 is a prime.

It is not a weakly prime, because it can be changed into another prime (30235104121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15117552260 + 15117552261.

It is an arithmetic number, because the mean of its divisors is an integer number (15117552261).

Almost surely, 2^30235104521 is an apocalyptic number.

It is an amenable number.

30235104521 is a deficient number, since it is larger than the sum of its proper divisors (1).

30235104521 is an equidigital number, since it uses as much as digits as its factorization.

30235104521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 30235104521 its reverse (12540153203), we get a palindrome (42775257724).

The spelling of 30235104521 in words is "thirty billion, two hundred thirty-five million, one hundred four thousand, five hundred twenty-one".