112131420 has 48 divisors (see below), whose sum is σ = 319125408. Its totient is φ = 29410560.

The previous prime is 112131419. The next prime is 112131421. The reversal of 112131420 is 24131211.

It is an interprime number because it is at equal distance from previous prime (112131419) and next prime (112131421).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112131420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112131421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11659 + ... + 18978.

It is an arithmetic number, because the mean of its divisors is an integer number (6648446).

Almost surely, 2^112131420 is an apocalyptic number.

112131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112131420 is an abundant number, since it is smaller than the sum of its proper divisors (206993988).

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

112131420 is a wasteful number, since it uses less digits than its factorization.

112131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30710 (or 30708 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 112131420 is about 10589.2124353041. The cubic root of 112131420 is about 482.2169153885.

Adding to 112131420 its reverse (24131211), we get a palindrome (136262631).

The spelling of 112131420 in words is "one hundred twelve million, one hundred thirty-one thousand, four hundred twenty".