421432320440303 has 2 divisors, whose sum is σ = 421432320440304. Its totient is φ = 421432320440302.

The previous prime is 421432320440249. The next prime is 421432320440309. The reversal of 421432320440303 is 303044023234124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421432320440303 - 2³⁶ = 421363600963567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421432320440309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210716160220151 + 210716160220152.

It is an arithmetic number, because the mean of its divisors is an integer number (210716160220152).

Almost surely, 2^{421432320440303} is an apocalyptic number.

421432320440303 is a deficient number, since it is larger than the sum of its proper divisors (1).

421432320440303 is an equidigital number, since it uses as much as digits as its factorization.

421432320440303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 421432320440303 its reverse (303044023234124), we get a palindrome (724476343674427).

The spelling of 421432320440303 in words is "four hundred twenty-one trillion, four hundred thirty-two billion, three hundred twenty million, four hundred forty thousand, three hundred three".