31300110405 has 24 divisors (see below), whose sum is σ = 57444909912. Its totient is φ = 15711427584.

The previous prime is 31300110367. The next prime is 31300110421. The reversal of 31300110405 is 50401100313.

It can be written as a sum of positive squares in 4 ways, for example, as 10176976161 + 21123134244 = 100881^2 + 145338^2 .

It is not a de Polignac number, because 31300110405 - 2¹⁵ = 31300077637 is a prime.

It is a super-2 number, since 2×31300110405² (a number of 22 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 in 23 ways as a sum of consecutive naturals, for example, 20456824 + ... + 20458353.

It is an arithmetic number, because the mean of its divisors is an integer number (2393537913).

Almost surely, 2^31300110405 is an apocalyptic number.

It is an amenable number.

31300110405 is a deficient number, since it is larger than the sum of its proper divisors (26144799507).

31300110405 is a wasteful number, since it uses less digits than its factorization.

31300110405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40915205 (or 40915202 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 31300110405 its reverse (50401100313), we get a palindrome (81701210718).

The spelling of 31300110405 in words is "thirty-one billion, three hundred million, one hundred ten thousand, four hundred five".