23223204149 has 2 divisors, whose sum is σ = 23223204150. Its totient is φ = 23223204148.

The previous prime is 23223204131. The next prime is 23223204217. The reversal of 23223204149 is 94140232232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20936643025 + 2286561124 = 144695^2 + 47818^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223204149 - 2⁸ = 23223203893 is a prime.

It is a super-2 number, since 2×23223204149² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23223204049) 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, 11611602074 + 11611602075.

It is an arithmetic number, because the mean of its divisors is an integer number (11611602075).

Almost surely, 2^23223204149 is an apocalyptic number.

It is an amenable number.

23223204149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223204149 is an equidigital number, since it uses as much as digits as its factorization.

23223204149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 23223204149 in words is "twenty-three billion, two hundred twenty-three million, two hundred four thousand, one hundred forty-nine".