103011321 has 8 divisors (see below), whose sum is σ = 156969664. Its totient is φ = 58863600.

The previous prime is 103011317. The next prime is 103011323. The reversal of 103011321 is 123110301.

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

It is not a de Polignac number, because 103011321 - 2² = 103011317 is a prime.

It is a super-2 number, since 2×103011321² = 21222664508330082, 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 = 103011297 and 103011306.

It is not an unprimeable number, because it can be changed into a prime (103011323) 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, 2452630 + ... + 2452671.

It is an arithmetic number, because the mean of its divisors is an integer number (19621208).

Almost surely, 2^103011321 is an apocalyptic number.

It is an amenable number.

103011321 is a deficient number, since it is larger than the sum of its proper divisors (53958343).

103011321 is an equidigital number, since it uses as much as digits as its factorization.

103011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905311.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 103011321 is about 10149.4492954051. The cubic root of 103011321 is about 468.7719881597.

Adding to 103011321 its reverse (123110301), we get a palindrome (226121622).

The spelling of 103011321 in words is "one hundred three million, eleven thousand, three hundred twenty-one".