105031437085 has 4 divisors (see below), whose sum is σ = 126037724508. Its totient is φ = 84025149664.

The previous prime is 105031437073. The next prime is 105031437089. The reversal of 105031437085 is 580734130501.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47689387641 + 57342049444 = 218379^2 + 239462^2 .

It is a cyclic number.

It is not a de Polignac number, because 105031437085 - 2²⁵ = 104997882653 is a prime.

It is a super-2 number, since 2×105031437085² (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 (105031437089) 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, 10503143704 + ... + 10503143713.

It is an arithmetic number, because the mean of its divisors is an integer number (31509431127).

Almost surely, 2^105031437085 is an apocalyptic number.

It is an amenable number.

105031437085 is a deficient number, since it is larger than the sum of its proper divisors (21006287423).

105031437085 is an equidigital number, since it uses as much as digits as its factorization.

105031437085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21006287422.

The product of its (nonzero) digits is 50400, while the sum is 37.

Adding to 105031437085 its reverse (580734130501), we get a palindrome (685765567586).

The spelling of 105031437085 in words is "one hundred five billion, thirty-one million, four hundred thirty-seven thousand, eighty-five".