31130013011 has 8 divisors (see below), whose sum is σ = 31975182384. Its totient is φ = 30285044640.

The previous prime is 31130012999. The next prime is 31130013017. The reversal of 31130013011 is 11031003113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31130013011 - 2¹⁰ = 31130011987 is a prime.

It is a super-2 number, since 2×31130013011² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31130013017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295556 + ... + 386798.

It is an arithmetic number, because the mean of its divisors is an integer number (3996897798).

Almost surely, 2^31130013011 is an apocalyptic number.

31130013011 is a deficient number, since it is larger than the sum of its proper divisors (845169373).

31130013011 is an equidigital number, since it uses as much as digits as its factorization.

31130013011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100501.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31130013011 its reverse (11031003113), we get a palindrome (42161016124).

The spelling of 31130013011 in words is "thirty-one billion, one hundred thirty million, thirteen thousand, eleven".