431346031 has 2 divisors, whose sum is σ = 431346032. Its totient is φ = 431346030.

The previous prime is 431346023. The next prime is 431346061. The reversal of 431346031 is 130643134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431346031 - 2³ = 431346023 is a prime.

It is a super-2 number, since 2×431346031² = 372118796918905922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431345987 and 431346005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431346061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215673015 + 215673016.

It is an arithmetic number, because the mean of its divisors is an integer number (215673016).

Almost surely, 2^431346031 is an apocalyptic number.

431346031 is a deficient number, since it is larger than the sum of its proper divisors (1).

431346031 is an equidigital number, since it uses as much as digits as its factorization.

431346031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 431346031 is about 20768.8716833631. The cubic root of 431346031 is about 755.5709792755.

Adding to 431346031 its reverse (130643134), we get a palindrome (561989165).

The spelling of 431346031 in words is "four hundred thirty-one million, three hundred forty-six thousand, thirty-one".