38320121 has 4 divisors (see below), whose sum is σ = 43794432. Its totient is φ = 32845812.

The previous prime is 38320103. The next prime is 38320127. The reversal of 38320121 is 12102383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38320121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38320093 and 38320102.

It is not an unprimeable number, because it can be changed into a prime (38320127) 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, 2737145 + ... + 2737158.

It is an arithmetic number, because the mean of its divisors is an integer number (10948608).

Almost surely, 2^38320121 is an apocalyptic number.

It is an amenable number.

38320121 is a deficient number, since it is larger than the sum of its proper divisors (5474311).

38320121 is an equidigital number, since it uses as much as digits as its factorization.

38320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5474310.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 38320121 is about 6190.3247895405. The cubic root of 38320121 is about 337.1389712330.

The spelling of 38320121 in words is "thirty-eight million, three hundred twenty thousand, one hundred twenty-one".