431442123031 has 2 divisors, whose sum is σ = 431442123032. Its totient is φ = 431442123030.

The previous prime is 431442123019. The next prime is 431442123067. The reversal of 431442123031 is 130321244134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431442123031 - 2²¹ = 431440025879 is a prime.

It is a super-2 number, since 2×431442123031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431442129031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215721061515 + 215721061516.

It is an arithmetic number, because the mean of its divisors is an integer number (215721061516).

Almost surely, 2^431442123031 is an apocalyptic number.

431442123031 is a deficient number, since it is larger than the sum of its proper divisors (1).

431442123031 is an equidigital number, since it uses as much as digits as its factorization.

431442123031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 431442123031 its reverse (130321244134), we get a palindrome (561763367165).

The spelling of 431442123031 in words is "four hundred thirty-one billion, four hundred forty-two million, one hundred twenty-three thousand, thirty-one".