4021054321 has 2 divisors, whose sum is σ = 4021054322. Its totient is φ = 4021054320.

The previous prime is 4021054307. The next prime is 4021054333. The reversal of 4021054321 is 1234501204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2125671025 + 1895383296 = 46105^2 + 43536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021054321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4021054292 and 4021054301.

It is not a weakly prime, because it can be changed into another prime (4021054381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010527160 + 2010527161.

It is an arithmetic number, because the mean of its divisors is an integer number (2010527161).

Almost surely, 2^4021054321 is an apocalyptic number.

It is an amenable number.

4021054321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021054321 is an equidigital number, since it uses as much as digits as its factorization.

4021054321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 4021054321 is about 63411.7837708418. The cubic root of 4021054321 is about 1590.1813172179.

Adding to 4021054321 its reverse (1234501204), we get a palindrome (5255555525).

The spelling of 4021054321 in words is "four billion, twenty-one million, fifty-four thousand, three hundred twenty-one".