109311000 has 128 divisors (see below), whose sum is σ = 345945600. Its totient is φ = 28732800.

The previous prime is 109310989. The next prime is 109311017. The reversal of 109311000 is 113901.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248781 + ... + 249219.

It is an arithmetic number, because the mean of its divisors is an integer number (2702700).

Almost surely, 2^109311000 is an apocalyptic number.

109311000 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 109311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172972800).

109311000 is an abundant number, since it is smaller than the sum of its proper divisors (236634600).

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

109311000 is a wasteful number, since it uses less digits than its factorization.

109311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 109311000 is about 10455.1900987022. The cubic root of 109311000 is about 478.1394993253.

Adding to 109311000 its reverse (113901), we get a palindrome (109424901).

The spelling of 109311000 in words is "one hundred nine million, three hundred eleven thousand".