30243400133 has 4 divisors (see below), whose sum is σ = 30249007200. Its totient is φ = 30237793068.

The previous prime is 30243400127. The next prime is 30243400139. The reversal of 30243400133 is 33100434203.

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 an interprime number because it is at equal distance from previous prime (30243400127) and next prime (30243400139).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30243400133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30243400099 and 30243400108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243400139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2795435 + ... + 2806232.

It is an arithmetic number, because the mean of its divisors is an integer number (7562251800).

Almost surely, 2^30243400133 is an apocalyptic number.

It is an amenable number.

30243400133 is a deficient number, since it is larger than the sum of its proper divisors (5607067).

30243400133 is an equidigital number, since it uses as much as digits as its factorization.

30243400133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5607066.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30243400133 its reverse (33100434203), we get a palindrome (63343834336).

The spelling of 30243400133 in words is "thirty billion, two hundred forty-three million, four hundred thousand, one hundred thirty-three".