2603319421 has 2 divisors, whose sum is σ = 2603319422. Its totient is φ = 2603319420.

The previous prime is 2603319401. The next prime is 2603319431. The reversal of 2603319421 is 1249133062.

2603319421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2413265625 + 190053796 = 49125^2 + 13786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2603319421 - 2⁹ = 2603318909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2603319401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301659710 + 1301659711.

It is an arithmetic number, because the mean of its divisors is an integer number (1301659711).

Almost surely, 2^2603319421 is an apocalyptic number.

It is an amenable number.

2603319421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2603319421 is an equidigital number, since it uses as much as digits as its factorization.

2603319421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 2603319421 is about 51022.7343544032. The cubic root of 2603319421 is about 1375.6538018664.

It can be divided in two parts, 26033 and 19421, that added together give a palindrome (45454).

The spelling of 2603319421 in words is "two billion, six hundred three million, three hundred nineteen thousand, four hundred twenty-one".