431403403601 has 2 divisors, whose sum is σ = 431403403602. Its totient is φ = 431403403600.

The previous prime is 431403403589. The next prime is 431403403609. The reversal of 431403403601 is 106304304134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394855140625 + 36548262976 = 628375^2 + 191176^2 .

It is a cyclic number.

It is not a de Polignac number, because 431403403601 - 2³⁰ = 430329661777 is a prime.

It is a super-2 number, since 2×431403403601² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (431403403609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215701701800 + 215701701801.

It is an arithmetic number, because the mean of its divisors is an integer number (215701701801).

Almost surely, 2^431403403601 is an apocalyptic number.

It is an amenable number.

431403403601 is a deficient number, since it is larger than the sum of its proper divisors (1).

431403403601 is an equidigital number, since it uses as much as digits as its factorization.

431403403601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 431403403601 its reverse (106304304134), we get a palindrome (537707707735).

The spelling of 431403403601 in words is "four hundred thirty-one billion, four hundred three million, four hundred three thousand, six hundred one".