3021003421 has 2 divisors, whose sum is σ = 3021003422. Its totient is φ = 3021003420.

The previous prime is 3021003409. The next prime is 3021003431. The reversal of 3021003421 is 1243001203.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1731475321 + 1289528100 = 41611^2 + 35910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3021003421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3021003395 and 3021003404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3021003431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510501710 + 1510501711.

It is an arithmetic number, because the mean of its divisors is an integer number (1510501711).

Almost surely, 2^3021003421 is an apocalyptic number.

It is an amenable number.

3021003421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3021003421 is an equidigital number, since it uses as much as digits as its factorization.

3021003421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3021003421 is about 54963.6554552188. The cubic root of 3021003421 is about 1445.6075431232.

Adding to 3021003421 its reverse (1243001203), we get a palindrome (4264004624).

The spelling of 3021003421 in words is "three billion, twenty-one million, three thousand, four hundred twenty-one".