103031231112 has 96 divisors (see below), whose sum is σ = 292125113280. Its totient is φ = 32743370880.

The previous prime is 103031231053. The next prime is 103031231113. The reversal of 103031231112 is 211132130301.

103031231112 is a `hidden beast` number, since 1 + 0 + 30 + 312 + 311 + 12 = 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 (103031231113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 407062 + ... + 609722.

It is an arithmetic number, because the mean of its divisors is an integer number (3042969930).

Almost surely, 2^103031231112 is an apocalyptic number.

103031231112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103031231112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146062556640).

103031231112 is an abundant number, since it is smaller than the sum of its proper divisors (189093882168).

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

103031231112 is a wasteful number, since it uses less digits than its factorization.

103031231112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203003 (or 202996 counting only the distinct ones).

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

Adding to 103031231112 its reverse (211132130301), we get a palindrome (314163361413).

The spelling of 103031231112 in words is "one hundred three billion, thirty-one million, two hundred thirty-one thousand, one hundred twelve".