31103210003130 has 96 divisors (see below), whose sum is σ = 81585224967168. Its totient is φ = 8220976848000.

The previous prime is 31103210003093. The next prime is 31103210003137. The reversal of 31103210003130 is 3130001230113.

It is a happy number.

31103210003130 is a `hidden beast` number, since 31 + 1 + 0 + 321 + 0 + 0 + 0 + 313 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31103210003137) 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 47 ways as a sum of consecutive naturals, for example, 1495605 + ... + 8027655.

It is an arithmetic number, because the mean of its divisors is an integer number (849846093408).

Almost surely, 2^{31103210003130} is an apocalyptic number.

31103210003130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31103210003130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40792612483584).

31103210003130 is an abundant number, since it is smaller than the sum of its proper divisors (50482014964038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31103210003130 is a wasteful number, since it uses less digits than its factorization.

31103210003130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532532 (or 6532529 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 31103210003130 its reverse (3130001230113), we get a palindrome (34233211233243).

The spelling of 31103210003130 in words is "thirty-one trillion, one hundred three billion, two hundred ten million, three thousand, one hundred thirty".