30212110231133 has 4 divisors (see below), whose sum is σ = 30242413251420. Its totient is φ = 30181807210848.

The previous prime is 30212110231129. The next prime is 30212110231139. The reversal of 30212110231133 is 33113201121203.

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 23400312987769 + 6811797243364 = 4837387^2 + 2609942^2 .

It is a cyclic number.

It is not a de Polignac number, because 30212110231133 - 2² = 30212110231129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30212110231099 and 30212110231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212110231139) 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, 15151508648 + ... + 15151510641.

It is an arithmetic number, because the mean of its divisors is an integer number (7560603312855).

Almost surely, 2^{30212110231133} is an apocalyptic number.

It is an amenable number.

30212110231133 is a deficient number, since it is larger than the sum of its proper divisors (30303020287).

30212110231133 is an equidigital number, since it uses as much as digits as its factorization.

30212110231133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30303020286.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30212110231133 its reverse (33113201121203), we get a palindrome (63325311352336).

The spelling of 30212110231133 in words is "thirty trillion, two hundred twelve billion, one hundred ten million, two hundred thirty-one thousand, one hundred thirty-three".