30231011213 has 4 divisors (see below), whose sum is σ = 32556473628. Its totient is φ = 27905548800.

The previous prime is 30231011197. The next prime is 30231011219. The reversal of 30231011213 is 31211013203.

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 5469785764 + 24761225449 = 73958^2 + 157357^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231011213 - 2⁴ = 30231011197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30231011191 and 30231011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231011219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162731188 + ... + 1162731213.

It is an arithmetic number, because the mean of its divisors is an integer number (8139118407).

Almost surely, 2^30231011213 is an apocalyptic number.

It is an amenable number.

30231011213 is a deficient number, since it is larger than the sum of its proper divisors (2325462415).

30231011213 is a wasteful number, since it uses less digits than its factorization.

30231011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325462414.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30231011213 its reverse (31211013203), we get a palindrome (61442024416).

The spelling of 30231011213 in words is "thirty billion, two hundred thirty-one million, eleven thousand, two hundred thirteen".