30661325003213 has 4 divisors (see below), whose sum is σ = 30670820616540. Its totient is φ = 30651829389888.

The previous prime is 30661325003207. The next prime is 30661325003251. The reversal of 30661325003213 is 31230052316603.

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 19834579681609 + 10826745321604 = 4453603^2 + 3290402^2 .

It is a cyclic number.

It is not a de Polignac number, because 30661325003213 - 2²⁴ = 30661308225997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30661325003263) 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, 4747801820 + ... + 4747808277.

It is an arithmetic number, because the mean of its divisors is an integer number (7667705154135).

Almost surely, 2^{30661325003213} is an apocalyptic number.

It is an amenable number.

30661325003213 is a deficient number, since it is larger than the sum of its proper divisors (9495613327).

30661325003213 is an equidigital number, since it uses as much as digits as its factorization.

30661325003213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9495613326.

The product of its (nonzero) digits is 58320, while the sum is 35.

Adding to 30661325003213 its reverse (31230052316603), we get a palindrome (61891377319816).

The spelling of 30661325003213 in words is "thirty trillion, six hundred sixty-one billion, three hundred twenty-five million, three thousand, two hundred thirteen".