109421312 has 216 divisors, whose sum is σ = 303386832. Its totient is φ = 38707200.

The previous prime is 109421297. The next prime is 109421339. The reversal of 109421312 is 213124901.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1793762 + ... + 1793822.

Almost surely, 2^109421312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151693416).

109421312 is an abundant number, since it is smaller than the sum of its proper divisors (193965520).

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

109421312 is a wasteful number, since it uses less digits than its factorization.

109421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 109421312 is about 10460.4642344401. The cubic root of 109421312 is about 478.3002845829.

The spelling of 109421312 in words is "one hundred nine million, four hundred twenty-one thousand, three hundred twelve".