43481023 has 2 divisors, whose sum is σ = 43481024. Its totient is φ = 43481022.

The previous prime is 43480991. The next prime is 43481051. The reversal of 43481023 is 32018434.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43481023 - 2⁵ = 43480991 is a prime.

It is a super-2 number, since 2×43481023² = 3781198722253058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43481093) 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, 21740511 + 21740512.

It is an arithmetic number, because the mean of its divisors is an integer number (21740512).

Almost surely, 2^43481023 is an apocalyptic number.

43481023 is a deficient number, since it is larger than the sum of its proper divisors (1).

43481023 is an equidigital number, since it uses as much as digits as its factorization.

43481023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 43481023 is about 6594.0141795419. The cubic root of 43481023 is about 351.6413330757.

Adding to 43481023 its reverse (32018434), we get a palindrome (75499457).

The spelling of 43481023 in words is "forty-three million, four hundred eighty-one thousand, twenty-three".