105512344009 has 2 divisors, whose sum is σ = 105512344010. Its totient is φ = 105512344008.

The previous prime is 105512343971. The next prime is 105512344043. The reversal of 105512344009 is 900443215501.

It is an a-pointer prime, because the next prime (105512344043) can be obtained adding 105512344009 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68432990409 + 37079353600 = 261597^2 + 192560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105512344009 is a prime.

It is a super-2 number, since 2×105512344009² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105512344409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52756172004 + 52756172005.

It is an arithmetic number, because the mean of its divisors is an integer number (52756172005).

Almost surely, 2^105512344009 is an apocalyptic number.

It is an amenable number.

105512344009 is a deficient number, since it is larger than the sum of its proper divisors (1).

105512344009 is an equidigital number, since it uses as much as digits as its factorization.

105512344009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 105512344009 in words is "one hundred five billion, five hundred twelve million, three hundred forty-four thousand, nine".