4034040521321 has 2 divisors, whose sum is σ = 4034040521322. Its totient is φ = 4034040521320.

The previous prime is 4034040521309. The next prime is 4034040521333. The reversal of 4034040521321 is 1231250404304.

It is a balanced prime because it is at equal distance from previous prime (4034040521309) and next prime (4034040521333).

It can be written as a sum of positive squares in only one way, i.e., 3482086621225 + 551953900096 = 1866035^2 + 742936^2 .

It is a cyclic number.

It is not a de Polignac number, because 4034040521321 - 2³⁴ = 4016860652137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4034040521351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2017020260660 + 2017020260661.

It is an arithmetic number, because the mean of its divisors is an integer number (2017020260661).

Almost surely, 2^{4034040521321} is an apocalyptic number.

It is an amenable number.

4034040521321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4034040521321 is an equidigital number, since it uses as much as digits as its factorization.

4034040521321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 4034040521321 its reverse (1231250404304), we get a palindrome (5265290925625).

The spelling of 4034040521321 in words is "four trillion, thirty-four billion, forty million, five hundred twenty-one thousand, three hundred twenty-one".