431030401 has 2 divisors, whose sum is σ = 431030402. Its totient is φ = 431030400.

The previous prime is 431030381. The next prime is 431030423. The reversal of 431030401 is 104030134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416772225 + 14258176 = 20415^2 + 3776^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431030401 is a prime.

It is a super-4 number, since 4×431030401⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (431030101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215515200 + 215515201.

It is an arithmetic number, because the mean of its divisors is an integer number (215515201).

Almost surely, 2^431030401 is an apocalyptic number.

It is an amenable number.

431030401 is a deficient number, since it is larger than the sum of its proper divisors (1).

431030401 is an equidigital number, since it uses as much as digits as its factorization.

431030401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 431030401 is about 20761.2716614373. The cubic root of 431030401 is about 755.3866423064.

Adding to 431030401 its reverse (104030134), we get a palindrome (535060535).

The spelling of 431030401 in words is "four hundred thirty-one million, thirty thousand, four hundred one".