41431431443021 has 2 divisors, whose sum is σ = 41431431443022. Its totient is φ = 41431431443020.

The previous prime is 41431431442987. The next prime is 41431431443029. The reversal of 41431431443021 is 12034413413414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21138983221225 + 20292448221796 = 4597715^2 + 4504714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41431431443021 is a prime.

It is a super-2 number, since 2×41431431443021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41431431443029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20715715721510 + 20715715721511.

It is an arithmetic number, because the mean of its divisors is an integer number (20715715721511).

Almost surely, 2^{41431431443021} is an apocalyptic number.

It is an amenable number.

41431431443021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41431431443021 is an equidigital number, since it uses as much as digits as its factorization.

41431431443021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 41431431443021 its reverse (12034413413414), we get a palindrome (53465844856435).

The spelling of 41431431443021 in words is "forty-one trillion, four hundred thirty-one billion, four hundred thirty-one million, four hundred forty-three thousand, twenty-one".