105144451117 has 2 divisors, whose sum is σ = 105144451118. Its totient is φ = 105144451116.

The previous prime is 105144451109. The next prime is 105144451207. The reversal of 105144451117 is 711154441501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65485321801 + 39659129316 = 255901^2 + 199146^2 .

It is a cyclic number.

It is not a de Polignac number, because 105144451117 - 2³ = 105144451109 is a prime.

It is a super-2 number, since 2×105144451117² (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 (105144454117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52572225558 + 52572225559.

It is an arithmetic number, because the mean of its divisors is an integer number (52572225559).

Almost surely, 2^105144451117 is an apocalyptic number.

It is an amenable number.

105144451117 is a deficient number, since it is larger than the sum of its proper divisors (1).

105144451117 is an equidigital number, since it uses as much as digits as its factorization.

105144451117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 34.

Adding to 105144451117 its reverse (711154441501), we get a palindrome (816298892618).

The spelling of 105144451117 in words is "one hundred five billion, one hundred forty-four million, four hundred fifty-one thousand, one hundred seventeen".