104128331 has 2 divisors, whose sum is σ = 104128332. Its totient is φ = 104128330.

The previous prime is 104128301. The next prime is 104128351. The reversal of 104128331 is 133821401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104128331 - 2⁶ = 104128267 is a prime.

It is a super-2 number, since 2×104128331² = 21685418633691122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 104128297 and 104128306.

It is not a weakly prime, because it can be changed into another prime (104128301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52064165 + 52064166.

It is an arithmetic number, because the mean of its divisors is an integer number (52064166).

Almost surely, 2^104128331 is an apocalyptic number.

104128331 is a deficient number, since it is larger than the sum of its proper divisors (1).

104128331 is an equidigital number, since it uses as much as digits as its factorization.

104128331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 104128331 is about 10204.3290323274. The cubic root of 104128331 is about 470.4602869686.

Adding to 104128331 its reverse (133821401), we get a palindrome (237949732).

The spelling of 104128331 in words is "one hundred four million, one hundred twenty-eight thousand, three hundred thirty-one".