30013123033 has 4 divisors (see below), whose sum is σ = 31048058340. Its totient is φ = 28978187728.

The previous prime is 30013123009. The next prime is 30013123057. The reversal of 30013123033 is 33032131003.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (30013123009) and next prime (30013123057).

It can be written as a sum of positive squares in 2 ways, for example, as 13529644489 + 16483478544 = 116317^2 + 128388^2 .

It is a cyclic number.

It is not a de Polignac number, because 30013123033 - 2⁹ = 30013122521 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 30013123033.

It is not an unprimeable number, because it can be changed into a prime (30013123003) 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, 517467610 + ... + 517467667.

It is an arithmetic number, because the mean of its divisors is an integer number (7762014585).

Almost surely, 2^30013123033 is an apocalyptic number.

It is an amenable number.

30013123033 is a deficient number, since it is larger than the sum of its proper divisors (1034935307).

30013123033 is a wasteful number, since it uses less digits than its factorization.

30013123033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034935306.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 30013123033 its reverse (33032131003), we get a palindrome (63045254036).

The spelling of 30013123033 in words is "thirty billion, thirteen million, one hundred twenty-three thousand, thirty-three".