431203420201 has 2 divisors, whose sum is σ = 431203420202. Its totient is φ = 431203420200.

The previous prime is 431203420183. The next prime is 431203420211. The reversal of 431203420201 is 102024302134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381029660176 + 50173760025 = 617276^2 + 223995^2 .

It is a cyclic number.

It is not a de Polignac number, because 431203420201 - 2³¹ = 429055936553 is a prime.

It is not a weakly prime, because it can be changed into another prime (431203420211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215601710100 + 215601710101.

It is an arithmetic number, because the mean of its divisors is an integer number (215601710101).

Almost surely, 2^431203420201 is an apocalyptic number.

It is an amenable number.

431203420201 is a deficient number, since it is larger than the sum of its proper divisors (1).

431203420201 is an equidigital number, since it uses as much as digits as its factorization.

431203420201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 431203420201 its reverse (102024302134), we get a palindrome (533227722335).

It can be divided in two parts, 43120 and 3420201, that added together give a square (3463321 = 1861²).

The spelling of 431203420201 in words is "four hundred thirty-one billion, two hundred three million, four hundred twenty thousand, two hundred one".