111031313130 has 48 divisors (see below), whose sum is σ = 298635952680. Its totient is φ = 28587371904.

The previous prime is 111031313119. The next prime is 111031313143. The reversal of 111031313130 is 31313130111.

It can be written as a sum of positive squares in 4 ways, for example, as 82707432921 + 28323880209 = 287589^2 + 168297^2 .

It is a super-2 number, since 2×111031313130² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21267757 + ... + 21272976.

Almost surely, 2^111031313130 is an apocalyptic number.

111031313130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111031313130 is an abundant number, since it is smaller than the sum of its proper divisors (187604639550).

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

111031313130 is a wasteful number, since it uses less digits than its factorization.

111031313130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42540775 (or 42540772 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 111031313130 its reverse (31313130111), we get a palindrome (142344443241).

The spelling of 111031313130 in words is "one hundred eleven billion, thirty-one million, three hundred thirteen thousand, one hundred thirty".