23305030181 has 2 divisors, whose sum is σ = 23305030182. Its totient is φ = 23305030180.

The previous prime is 23305030153. The next prime is 23305030283. The reversal of 23305030181 is 18103050332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22803718081 + 501312100 = 151009^2 + 22390^2 .

It is a cyclic number.

It is not a de Polignac number, because 23305030181 - 2¹⁸ = 23304768037 is a prime.

It is a super-2 number, since 2×23305030181² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23305030181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23305030081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11652515090 + 11652515091.

It is an arithmetic number, because the mean of its divisors is an integer number (11652515091).

Almost surely, 2^23305030181 is an apocalyptic number.

It is an amenable number.

23305030181 is a deficient number, since it is larger than the sum of its proper divisors (1).

23305030181 is an equidigital number, since it uses as much as digits as its factorization.

23305030181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 23305030181 in words is "twenty-three billion, three hundred five million, thirty thousand, one hundred eighty-one".