112131212130 has 96 divisors (see below), whose sum is σ = 333288169344. Its totient is φ = 25622431488.

The previous prime is 112131212129. The next prime is 112131212131. The reversal of 112131212130 is 31212131211.

It is an interprime number because it is at equal distance from previous prime (112131212129) and next prime (112131212131).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112131212131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2270662 + ... + 2319518.

It is an arithmetic number, because the mean of its divisors is an integer number (3471751764).

Almost surely, 2^112131212130 is an apocalyptic number.

112131212130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112131212130 is an abundant number, since it is smaller than the sum of its proper divisors (221156957214).

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

112131212130 is a wasteful number, since it uses less digits than its factorization.

112131212130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52520 (or 52517 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 112131212130 its reverse (31212131211), we get a palindrome (143343343341).

The spelling of 112131212130 in words is "one hundred twelve billion, one hundred thirty-one million, two hundred twelve thousand, one hundred thirty".