109520121 has 8 divisors (see below), whose sum is σ = 146077344. Its totient is φ = 72988160.

The previous prime is 109520113. The next prime is 109520141. The reversal of 109520121 is 121025901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109520121 - 2³ = 109520113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (109520141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9370 + ... + 17516.

It is an arithmetic number, because the mean of its divisors is an integer number (18259668).

Almost surely, 2^109520121 is an apocalyptic number.

It is an amenable number.

109520121 is a deficient number, since it is larger than the sum of its proper divisors (36557223).

109520121 is an equidigital number, since it uses as much as digits as its factorization.

109520121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12631.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 109520121 is about 10465.1861426350. The cubic root of 109520121 is about 478.4442119206. Note that the first 3 decimals are identical.

The spelling of 109520121 in words is "one hundred nine million, five hundred twenty thousand, one hundred twenty-one".