105339293987 has 4 divisors (see below), whose sum is σ = 105340298856. Its totient is φ = 105338289120.

The previous prime is 105339293977. The next prime is 105339293999. The reversal of 105339293987 is 789392933501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 789392933501 = 71 ⋅11118210331.

It is a cyclic number.

It is not a de Polignac number, because 105339293987 - 2¹⁸ = 105339031843 is a prime.

It is a super-2 number, since 2×105339293987² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105339293947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324089 + ... + 561882.

It is an arithmetic number, because the mean of its divisors is an integer number (26335074714).

Almost surely, 2^105339293987 is an apocalyptic number.

105339293987 is a deficient number, since it is larger than the sum of its proper divisors (1004869).

105339293987 is an equidigital number, since it uses as much as digits as its factorization.

105339293987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004868.

The product of its (nonzero) digits is 11022480, while the sum is 59.

The spelling of 105339293987 in words is "one hundred five billion, three hundred thirty-nine million, two hundred ninety-three thousand, nine hundred eighty-seven".