30640255241 has 4 divisors (see below), whose sum is σ = 30646977684. Its totient is φ = 30633532800.

The previous prime is 30640255223. The next prime is 30640255271. The reversal of 30640255241 is 14255204603.

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 6641598016 + 23998657225 = 81496^2 + 154915^2 .

It is a cyclic number.

It is not a de Polignac number, because 30640255241 - 2¹⁰ = 30640254217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30640255198 and 30640255207.

It is not an unprimeable number, because it can be changed into a prime (30640255211) 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, 3354380 + ... + 3363501.

It is an arithmetic number, because the mean of its divisors is an integer number (7661744421).

Almost surely, 2^30640255241 is an apocalyptic number.

It is an amenable number.

30640255241 is a deficient number, since it is larger than the sum of its proper divisors (6722443).

30640255241 is an equidigital number, since it uses as much as digits as its factorization.

30640255241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6722442.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 30640255241 its reverse (14255204603), we get a palindrome (44895459844).

The spelling of 30640255241 in words is "thirty billion, six hundred forty million, two hundred fifty-five thousand, two hundred forty-one".