113141220 has 96 divisors (see below), whose sum is σ = 330075648. Its totient is φ = 28933632.

The previous prime is 113141191. The next prime is 113141221. The reversal of 113141220 is 22141311.

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 113141220.

It is not an unprimeable number, because it can be changed into a prime (113141221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149082 + ... + 149838.

It is an arithmetic number, because the mean of its divisors is an integer number (3438288).

Almost surely, 2^113141220 is an apocalyptic number.

113141220 is a gapful number since it is divisible by the number (10) 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 113141220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165037824).

113141220 is an abundant number, since it is smaller than the sum of its proper divisors (216934428).

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

113141220 is a wasteful number, since it uses less digits than its factorization.

113141220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 867 counting only the distinct ones).

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

The square root of 113141220 is about 10636.7861687636. The cubic root of 113141220 is about 483.6601272592.

Adding to 113141220 its reverse (22141311), we get a palindrome (135282531).

Subtracting from 113141220 its reverse (22141311), we obtain a palindrome (90999909).

The spelling of 113141220 in words is "one hundred thirteen million, one hundred forty-one thousand, two hundred twenty".