105241421543 has 2 divisors, whose sum is σ = 105241421544. Its totient is φ = 105241421542.

The previous prime is 105241421503. The next prime is 105241421599. The reversal of 105241421543 is 345124142501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105241421543 - 2¹⁶ = 105241356007 is a prime.

It is a super-2 number, since 2×105241421543² (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 (105241421503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52620710771 + 52620710772.

It is an arithmetic number, because the mean of its divisors is an integer number (52620710772).

Almost surely, 2^105241421543 is an apocalyptic number.

105241421543 is a deficient number, since it is larger than the sum of its proper divisors (1).

105241421543 is an equidigital number, since it uses as much as digits as its factorization.

105241421543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 105241421543 in words is "one hundred five billion, two hundred forty-one million, four hundred twenty-one thousand, five hundred forty-three".