30020231233 has 16 divisors (see below), whose sum is σ = 30584780800. Its totient is φ = 29460749760.

The previous prime is 30020231207. The next prime is 30020231257. The reversal of 30020231233 is 33213202003.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020231233 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 30020231233.

It is not an unprimeable number, because it can be changed into a prime (30020231273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17986123 + ... + 17987791.

It is an arithmetic number, because the mean of its divisors is an integer number (1911548800).

Almost surely, 2^30020231233 is an apocalyptic number.

It is an amenable number.

30020231233 is a deficient number, since it is larger than the sum of its proper divisors (564549567).

30020231233 is a wasteful number, since it uses less digits than its factorization.

30020231233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 30020231233 its reverse (33213202003), we get a palindrome (63233433236).

The spelling of 30020231233 in words is "thirty billion, twenty million, two hundred thirty-one thousand, two hundred thirty-three".