105943836561631 has 2 divisors, whose sum is σ = 105943836561632. Its totient is φ = 105943836561630.

The previous prime is 105943836561427. The next prime is 105943836561691. The reversal of 105943836561631 is 136165638349501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105943836561631 - 2¹⁵ = 105943836528863 is a prime.

It is a super-2 number, since 2×105943836561631² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105943836561631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105943836561691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52971918280815 + 52971918280816.

It is an arithmetic number, because the mean of its divisors is an integer number (52971918280816).

Almost surely, 2^{105943836561631} is an apocalyptic number.

105943836561631 is a deficient number, since it is larger than the sum of its proper divisors (1).

105943836561631 is an equidigital number, since it uses as much as digits as its factorization.

105943836561631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41990400, while the sum is 61.

The spelling of 105943836561631 in words is "one hundred five trillion, nine hundred forty-three billion, eight hundred thirty-six million, five hundred sixty-one thousand, six hundred thirty-one".