107231321 has 4 divisors (see below), whose sum is σ = 107373732. Its totient is φ = 107088912.

The previous prime is 107231309. The next prime is 107231323. The reversal of 107231321 is 123132701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71995225 + 35236096 = 8485^2 + 5936^2 .

It is a cyclic number.

It is not a de Polignac number, because 107231321 - 2¹⁰ = 107230297 is a prime.

It is a super-2 number, since 2×107231321² = 22997112406810082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107231293 and 107231302.

It is not an unprimeable number, because it can be changed into a prime (107231323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70070 + ... + 71583.

It is an arithmetic number, because the mean of its divisors is an integer number (26843433).

Almost surely, 2^107231321 is an apocalyptic number.

It is an amenable number.

107231321 is a deficient number, since it is larger than the sum of its proper divisors (142411).

107231321 is an equidigital number, since it uses as much as digits as its factorization.

107231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142410.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 107231321 is about 10355.2557187160. The cubic root of 107231321 is about 475.0878079590.

The spelling of 107231321 in words is "one hundred seven million, two hundred thirty-one thousand, three hundred twenty-one".