603245043421 has 2 divisors, whose sum is σ = 603245043422. Its totient is φ = 603245043420.

The previous prime is 603245043319. The next prime is 603245043433. The reversal of 603245043421 is 124340542306.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 563985980100 + 39259063321 = 750990^2 + 198139^2 .

It is a cyclic number.

It is not a de Polignac number, because 603245043421 - 2⁹ = 603245042909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (603245043221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301622521710 + 301622521711.

It is an arithmetic number, because the mean of its divisors is an integer number (301622521711).

Almost surely, 2^603245043421 is an apocalyptic number.

It is an amenable number.

603245043421 is a deficient number, since it is larger than the sum of its proper divisors (1).

603245043421 is an equidigital number, since it uses as much as digits as its factorization.

603245043421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 603245043421 its reverse (124340542306), we get a palindrome (727585585727).

The spelling of 603245043421 in words is "six hundred three billion, two hundred forty-five million, forty-three thousand, four hundred twenty-one".