23971043 has 2 divisors, whose sum is σ = 23971044. Its totient is φ = 23971042.

The previous prime is 23971009. The next prime is 23971061. The reversal of 23971043 is 34017932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23971043 - 2¹⁰ = 23970019 is a prime.

It is a super-2 number, since 2×23971043² = 1149221805015698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23970997 and 23971015.

It is not a weakly prime, because it can be changed into another prime (23971063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11985521 + 11985522.

It is an arithmetic number, because the mean of its divisors is an integer number (11985522).

Almost surely, 2^23971043 is an apocalyptic number.

23971043 is a deficient number, since it is larger than the sum of its proper divisors (1).

23971043 is an equidigital number, since it uses as much as digits as its factorization.

23971043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 23971043 is about 4896.0231821347. The cubic root of 23971043 is about 288.3338584270. Note that the first 3 decimals are identical.

Adding to 23971043 its reverse (34017932), we get a palindrome (57988975).

The spelling of 23971043 in words is "twenty-three million, nine hundred seventy-one thousand, forty-three".