20304001233 has 6 divisors (see below), whose sum is σ = 29328001794. Its totient is φ = 13536000816.

The previous prime is 20304001231. The next prime is 20304001241. The reversal of 20304001233 is 33210040302.

20304001233 is a `hidden beast` number, since 2 + 0 + 30 + 400 + 1 + 233 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20258398224 + 45603009 = 142332^2 + 6753^2 .

It is not a de Polignac number, because 20304001233 - 2¹ = 20304001231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20304001231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1128000060 + ... + 1128000077.

It is an arithmetic number, because the mean of its divisors is an integer number (4888000299).

Almost surely, 2^20304001233 is an apocalyptic number.

It is an amenable number.

20304001233 is a deficient number, since it is larger than the sum of its proper divisors (9024000561).

20304001233 is a wasteful number, since it uses less digits than its factorization.

20304001233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256000143 (or 2256000140 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20304001233 its reverse (33210040302), we get a palindrome (53514041535).

The spelling of 20304001233 in words is "twenty billion, three hundred four million, one thousand, two hundred thirty-three".