113231100 has 108 divisors (see below), whose sum is σ = 339834152. Its totient is φ = 29088000.

The previous prime is 113231081. The next prime is 113231119. The reversal of 113231100 is 1132311.

It is an interprime number because it is at equal distance from previous prime (113231081) and next prime (113231119).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1121050 + ... + 1121150.

Almost surely, 2^113231100 is an apocalyptic number.

113231100 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 113231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169917076).

113231100 is an abundant number, since it is smaller than the sum of its proper divisors (226603052).

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

113231100 is a wasteful number, since it uses less digits than its factorization.

113231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 113231100 is about 10641.0102903813. The cubic root of 113231100 is about 483.7881674377.

Adding to 113231100 its reverse (1132311), we get a palindrome (114363411).

Multiplying 113231100 by its reverse (1132311), we get a square (128212820072100 = 11323110²).

113231100 divided by its reverse (1132311) gives a square (100 = 10²).

The spelling of 113231100 in words is "one hundred thirteen million, two hundred thirty-one thousand, one hundred".