20123030233 has 2 divisors, whose sum is σ = 20123030234. Its totient is φ = 20123030232.

The previous prime is 20123030227. The next prime is 20123030243. The reversal of 20123030233 is 33203032102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18712051264 + 1410978969 = 136792^2 + 37563^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123030233 - 2¹⁷ = 20122899161 is a prime.

It is a super-3 number, since 3×20123030233³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20123030233.

It is not a weakly prime, because it can be changed into another prime (20123030243) 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 as a sum of consecutive naturals, namely, 10061515116 + 10061515117.

It is an arithmetic number, because the mean of its divisors is an integer number (10061515117).

Almost surely, 2^20123030233 is an apocalyptic number.

It is an amenable number.

20123030233 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123030233 is an equidigital number, since it uses as much as digits as its factorization.

20123030233 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20123030233 its reverse (33203032102), we get a palindrome (53326062335).

The spelling of 20123030233 in words is "twenty billion, one hundred twenty-three million, thirty thousand, two hundred thirty-three".