105111243806 has 4 divisors (see below), whose sum is σ = 157666865712. Its totient is φ = 52555621902.

The previous prime is 105111243751. The next prime is 105111243847. The reversal of 105111243806 is 608342111501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105111243806² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26277810950 + ... + 26277810953.

It is an arithmetic number, because the mean of its divisors is an integer number (39416716428).

Almost surely, 2^105111243806 is an apocalyptic number.

105111243806 is a deficient number, since it is larger than the sum of its proper divisors (52555621906).

105111243806 is an equidigital number, since it uses as much as digits as its factorization.

105111243806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52555621905.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 105111243806 in words is "one hundred five billion, one hundred eleven million, two hundred forty-three thousand, eight hundred six".