30231111133 has 4 divisors (see below), whose sum is σ = 30231550368. Its totient is φ = 30230671900.

The previous prime is 30231111121. The next prime is 30231111139. The reversal of 30231111133 is 33111113203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30231111133 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 30231111133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231111139) 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, 91441 + ... + 262342.

It is an arithmetic number, because the mean of its divisors is an integer number (7557887592).

Almost surely, 2^30231111133 is an apocalyptic number.

It is an amenable number.

30231111133 is a deficient number, since it is larger than the sum of its proper divisors (439235).

30231111133 is an equidigital number, since it uses as much as digits as its factorization.

30231111133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439234.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 30231111133 its reverse (33111113203), we get a palindrome (63342224336).

The spelling of 30231111133 in words is "thirty billion, two hundred thirty-one million, one hundred eleven thousand, one hundred thirty-three".