2104132321 has 2 divisors, whose sum is σ = 2104132322. Its totient is φ = 2104132320.

The previous prime is 2104132309. The next prime is 2104132343. The reversal of 2104132321 is 1232314012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1948781025 + 155351296 = 44145^2 + 12464^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104132321 - 2¹³ = 2104124129 is a prime.

It is not a weakly prime, because it can be changed into another prime (2104132351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052066160 + 1052066161.

It is an arithmetic number, because the mean of its divisors is an integer number (1052066161).

Almost surely, 2^2104132321 is an apocalyptic number.

It is an amenable number.

2104132321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104132321 is an equidigital number, since it uses as much as digits as its factorization.

2104132321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2104132321 is about 45870.8221094848. The cubic root of 2104132321 is about 1281.4185772050.

Adding to 2104132321 its reverse (1232314012), we get a palindrome (3336446333).

The spelling of 2104132321 in words is "two billion, one hundred four million, one hundred thirty-two thousand, three hundred twenty-one".