30023012081 has 2 divisors, whose sum is σ = 30023012082. Its totient is φ = 30023012080.

The previous prime is 30023012053. The next prime is 30023012113. The reversal of 30023012081 is 18021032003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16108686400 + 13914325681 = 126920^2 + 117959^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30023012081 is a prime.

It is a super-2 number, since 2×30023012081² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30023012581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15011506040 + 15011506041.

It is an arithmetic number, because the mean of its divisors is an integer number (15011506041).

Almost surely, 2^30023012081 is an apocalyptic number.

It is an amenable number.

30023012081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30023012081 is an equidigital number, since it uses as much as digits as its factorization.

30023012081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 30023012081 its reverse (18021032003), we get a palindrome (48044044084).

The spelling of 30023012081 in words is "thirty billion, twenty-three million, twelve thousand, eighty-one".