109103720 has 64 divisors (see below), whose sum is σ = 279469440. Its totient is φ = 37945600.

The previous prime is 109103717. The next prime is 109103759. The reversal of 109103720 is 27301901.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4730 + ... + 15510.

It is an arithmetic number, because the mean of its divisors is an integer number (4366710).

Almost surely, 2^109103720 is an apocalyptic number.

109103720 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 109103720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139734720).

109103720 is an abundant number, since it is smaller than the sum of its proper divisors (170365720).

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

109103720 is a wasteful number, since it uses less digits than its factorization.

109103720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10826 (or 10822 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 109103720 is about 10445.2726149201. The cubic root of 109103720 is about 477.8370855207.

The spelling of 109103720 in words is "one hundred nine million, one hundred three thousand, seven hundred twenty".