105312667997 has 4 divisors (see below), whose sum is σ = 105317186016. Its totient is φ = 105308149980.

The previous prime is 105312667931. The next prime is 105312668003. The reversal of 105312667997 is 799766213501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 799766213501 = 37993 ⋅21050357.

It is a cyclic number.

It is not a de Polignac number, because 105312667997 - 2⁸ = 105312667741 is a prime.

It is a super-2 number, since 2×105312667997² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105312667597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223863 + ... + 2270724.

It is an arithmetic number, because the mean of its divisors is an integer number (26329296504).

Almost surely, 2^105312667997 is an apocalyptic number.

It is an amenable number.

105312667997 is a deficient number, since it is larger than the sum of its proper divisors (4518019).

105312667997 is an equidigital number, since it uses as much as digits as its factorization.

105312667997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518018.

The product of its (nonzero) digits is 4286520, while the sum is 56.

The spelling of 105312667997 in words is "one hundred five billion, three hundred twelve million, six hundred sixty-seven thousand, nine hundred ninety-seven".