105111515827 has 2 divisors, whose sum is σ = 105111515828. Its totient is φ = 105111515826.

The previous prime is 105111515813. The next prime is 105111515909. The reversal of 105111515827 is 728515111501.

It is a weak prime.

It is an emirp because it is prime and its reverse (728515111501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105111515827 - 2⁷ = 105111515699 is a prime.

It is a super-2 number, since 2×105111515827² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105111515027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555757913 + 52555757914.

It is an arithmetic number, because the mean of its divisors is an integer number (52555757914).

Almost surely, 2^105111515827 is an apocalyptic number.

105111515827 is a deficient number, since it is larger than the sum of its proper divisors (1).

105111515827 is an equidigital number, since it uses as much as digits as its factorization.

105111515827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 37.

The spelling of 105111515827 in words is "one hundred five billion, one hundred eleven million, five hundred fifteen thousand, eight hundred twenty-seven".