31230130021110 has 96 divisors (see below), whose sum is σ = 85996216043712. Its totient is φ = 7836189696000.

The previous prime is 31230130021087. The next prime is 31230130021151. The reversal of 31230130021110 is 1112003103213.

31230130021110 is a `hidden beast` number, since 3 + 1 + 230 + 1 + 300 + 21 + 110 = 666.

It is a super-2 number, since 2×31230130021110² (a number of 28 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3570687 + ... + 8672373.

It is an arithmetic number, because the mean of its divisors is an integer number (895793917122).

Almost surely, 2^{31230130021110} is an apocalyptic number.

31230130021110 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 31230130021110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42998108021856).

31230130021110 is an abundant number, since it is smaller than the sum of its proper divisors (54766086022602).

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

31230130021110 is a wasteful number, since it uses less digits than its factorization.

31230130021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5105718 (or 5105715 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 31230130021110 its reverse (1112003103213), we get a palindrome (32342133124323).

The spelling of 31230130021110 in words is "thirty-one trillion, two hundred thirty billion, one hundred thirty million, twenty-one thousand, one hundred ten".