104040121 has 2 divisors, whose sum is σ = 104040122. Its totient is φ = 104040120.

The previous prime is 104040103. The next prime is 104040127. The reversal of 104040121 is 121040401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104040000 + 121 = 10200^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 104040121 - 2⁵ = 104040089 is a prime.

It is not a weakly prime, because it can be changed into another prime (104040127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52020060 + 52020061.

It is an arithmetic number, because the mean of its divisors is an integer number (52020061).

Almost surely, 2^104040121 is an apocalyptic number.

It is an amenable number.

104040121 is a deficient number, since it is larger than the sum of its proper divisors (1).

104040121 is an equidigital number, since it uses as much as digits as its factorization.

104040121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 104040121 is about 10200.0059313708. The cubic root of 104040121 is about 470.3274027816.

Adding to 104040121 its reverse (121040401), we get a palindrome (225080522).

The spelling of 104040121 in words is "one hundred four million, forty thousand, one hundred twenty-one".