105012781267 has 2 divisors, whose sum is σ = 105012781268. Its totient is φ = 105012781266.

The previous prime is 105012781193. The next prime is 105012781301. The reversal of 105012781267 is 762187210501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105012781267 is a prime.

It is a super-2 number, since 2×105012781267² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105012788267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52506390633 + 52506390634.

It is an arithmetic number, because the mean of its divisors is an integer number (52506390634).

Almost surely, 2^105012781267 is an apocalyptic number.

105012781267 is a deficient number, since it is larger than the sum of its proper divisors (1).

105012781267 is an equidigital number, since it uses as much as digits as its factorization.

105012781267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 40.

Adding to 105012781267 its reverse (762187210501), we get a palindrome (867199991768).

The spelling of 105012781267 in words is "one hundred five billion, twelve million, seven hundred eighty-one thousand, two hundred sixty-seven".