23051993 has 2 divisors, whose sum is σ = 23051994. Its totient is φ = 23051992.

The previous prime is 23051971. The next prime is 23052011. The reversal of 23051993 is 39915032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 4963984 = 4253^2 + 2228^2 .

It is a cyclic number.

It is not a de Polignac number, because 23051993 - 2¹⁴ = 23035609 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23051293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11525996 + 11525997.

It is an arithmetic number, because the mean of its divisors is an integer number (11525997).

Almost surely, 2^23051993 is an apocalyptic number.

It is an amenable number.

23051993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23051993 is an equidigital number, since it uses as much as digits as its factorization.

23051993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 23051993 is about 4801.2491083050. The cubic root of 23051993 is about 284.6008282735.

The spelling of 23051993 in words is "twenty-three million, fifty-one thousand, nine hundred ninety-three".