30434442121 has 4 divisors (see below), whose sum is σ = 31008676932. Its totient is φ = 29860207312.

The previous prime is 30434442097. The next prime is 30434442161. The reversal of 30434442121 is 12124443403.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8823972096 + 21610470025 = 93936^2 + 147005^2 .

It is a cyclic number.

It is not a de Polignac number, because 30434442121 - 2¹⁷ = 30434311049 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 30434442121.

It is not an unprimeable number, because it can be changed into a prime (30434442161) 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, 287117326 + ... + 287117431.

It is an arithmetic number, because the mean of its divisors is an integer number (7752169233).

Almost surely, 2^30434442121 is an apocalyptic number.

It is an amenable number.

30434442121 is a deficient number, since it is larger than the sum of its proper divisors (574234811).

30434442121 is an equidigital number, since it uses as much as digits as its factorization.

30434442121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574234810.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 30434442121 its reverse (12124443403), we get a palindrome (42558885524).

The spelling of 30434442121 in words is "thirty billion, four hundred thirty-four million, four hundred forty-two thousand, one hundred twenty-one".