431433131 has 2 divisors, whose sum is σ = 431433132. Its totient is φ = 431433130.

The previous prime is 431433077. The next prime is 431433137. The reversal of 431433131 is 131334134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431433131 is a prime.

It is a super-2 number, since 2×431433131² = 372269093048926322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 431433097 and 431433106.

It is not a weakly prime, because it can be changed into another prime (431433137) 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, 215716565 + 215716566.

It is an arithmetic number, because the mean of its divisors is an integer number (215716566).

Almost surely, 2^431433131 is an apocalyptic number.

431433131 is a deficient number, since it is larger than the sum of its proper divisors (1).

431433131 is an equidigital number, since it uses as much as digits as its factorization.

431433131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 431433131 is about 20770.9684656253. The cubic root of 431433131 is about 755.6218323405.

Adding to 431433131 its reverse (131334134), we get a palindrome (562767265).

The spelling of 431433131 in words is "four hundred thirty-one million, four hundred thirty-three thousand, one hundred thirty-one".