31130310011 has 32 divisors (see below), whose sum is σ = 33676416000. Its totient is φ = 28687841280.

The previous prime is 31130309989. The next prime is 31130310037. The reversal of 31130310011 is 11001303113.

It is a happy number.

It is not a de Polignac number, because 31130310011 - 2¹⁰ = 31130308987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31130310611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69332315 + ... + 69332763.

It is an arithmetic number, because the mean of its divisors is an integer number (1052388000).

Almost surely, 2^31130310011 is an apocalyptic number.

31130310011 is a deficient number, since it is larger than the sum of its proper divisors (2546105989).

31130310011 is a wasteful number, since it uses less digits than its factorization.

31130310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

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

Adding to 31130310011 its reverse (11001303113), we get a palindrome (42131613124).

The spelling of 31130310011 in words is "thirty-one billion, one hundred thirty million, three hundred ten thousand, eleven".