431420051 has 2 divisors, whose sum is σ = 431420052. Its totient is φ = 431420050.

The previous prime is 431419991. The next prime is 431420057. The reversal of 431420051 is 150024134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 431420051 - 2¹⁴ = 431403667 is a prime.

It is a super-2 number, since 2×431420051² = 372246520809685202, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (431420057) 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, 215710025 + 215710026.

It is an arithmetic number, because the mean of its divisors is an integer number (215710026).

Almost surely, 2^431420051 is an apocalyptic number.

431420051 is a deficient number, since it is larger than the sum of its proper divisors (1).

431420051 is an equidigital number, since it uses as much as digits as its factorization.

431420051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 431420051 is about 20770.6536006935. The cubic root of 431420051 is about 755.6141960598.

Adding to 431420051 its reverse (150024134), we get a palindrome (581444185).

The spelling of 431420051 in words is "four hundred thirty-one million, four hundred twenty thousand, fifty-one".