105543813631 has 2 divisors, whose sum is σ = 105543813632. Its totient is φ = 105543813630.

The previous prime is 105543813589. The next prime is 105543813643. The reversal of 105543813631 is 136318345501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105543813631 is a prime.

It is a super-2 number, since 2×105543813631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105543813671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52771906815 + 52771906816.

It is an arithmetic number, because the mean of its divisors is an integer number (52771906816).

Almost surely, 2^105543813631 is an apocalyptic number.

105543813631 is a deficient number, since it is larger than the sum of its proper divisors (1).

105543813631 is an equidigital number, since it uses as much as digits as its factorization.

105543813631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 105543813631 in words is "one hundred five billion, five hundred forty-three million, eight hundred thirteen thousand, six hundred thirty-one".