105105120054427 has 2 divisors, whose sum is σ = 105105120054428. Its totient is φ = 105105120054426.

The previous prime is 105105120054413. The next prime is 105105120054457. The reversal of 105105120054427 is 724450021501501.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105105120054427 - 2¹¹ = 105105120052379 is a prime.

It is a super-2 number, since 2×105105120054427² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105105120054457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52552560027213 + 52552560027214.

It is an arithmetic number, because the mean of its divisors is an integer number (52552560027214).

Almost surely, 2^{105105120054427} is an apocalyptic number.

105105120054427 is a deficient number, since it is larger than the sum of its proper divisors (1).

105105120054427 is an equidigital number, since it uses as much as digits as its factorization.

105105120054427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 105105120054427 its reverse (724450021501501), we get a palindrome (829555141555928).

The spelling of 105105120054427 in words is "one hundred five trillion, one hundred five billion, one hundred twenty million, fifty-four thousand, four hundred twenty-seven".