31130210013 has 32 divisors (see below), whose sum is σ = 49416069120. Its totient is φ = 17056889280.

The previous prime is 31130209997. The next prime is 31130210053. The reversal of 31130210013 is 31001203113.

It is not a de Polignac number, because 31130210013 - 2⁴ = 31130209997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31130209974 and 31130210001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130210053) 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, 148395 + ... + 290312.

It is an arithmetic number, because the mean of its divisors is an integer number (1544252160).

Almost surely, 2^31130210013 is an apocalyptic number.

It is an amenable number.

31130210013 is a deficient number, since it is larger than the sum of its proper divisors (18285859107).

31130210013 is a wasteful number, since it uses less digits than its factorization.

31130210013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438857.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31130210013 its reverse (31001203113), we get a palindrome (62131413126).

The spelling of 31130210013 in words is "thirty-one billion, one hundred thirty million, two hundred ten thousand, thirteen".