43441031 has 2 divisors, whose sum is σ = 43441032. Its totient is φ = 43441030.

The previous prime is 43441007. The next prime is 43441033. The reversal of 43441031 is 13014434.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43441031 is a prime.

It is a super-2 number, since 2×43441031² = 3774246348685922, which contains 22 as substring.

Together with 43441033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 43440994 and 43441012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43441033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720515 + 21720516.

It is an arithmetic number, because the mean of its divisors is an integer number (21720516).

Almost surely, 2^43441031 is an apocalyptic number.

43441031 is a deficient number, since it is larger than the sum of its proper divisors (1).

43441031 is an equidigital number, since it uses as much as digits as its factorization.

43441031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 43441031 is about 6590.9810347171. The cubic root of 43441031 is about 351.5334917471.

Adding to 43441031 its reverse (13014434), we get a palindrome (56455465).

The spelling of 43441031 in words is "forty-three million, four hundred forty-one thousand, thirty-one".