1234043431 has 2 divisors, whose sum is σ = 1234043432. Its totient is φ = 1234043430.

The previous prime is 1234043411. The next prime is 1234043471. The reversal of 1234043431 is 1343404321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1234043431 - 2⁷ = 1234043303 is a prime.

It is a super-2 number, since 2×1234043431² = 3045726379188503522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1234043396 and 1234043405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234043401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617021715 + 617021716.

It is an arithmetic number, because the mean of its divisors is an integer number (617021716).

Almost surely, 2^1234043431 is an apocalyptic number.

1234043431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234043431 is an equidigital number, since it uses as much as digits as its factorization.

1234043431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1234043431 is about 35128.9543112231. The cubic root of 1234043431 is about 1072.6140502452.

Adding to 1234043431 its reverse (1343404321), we get a palindrome (2577447752).

The spelling of 1234043431 in words is "one billion, two hundred thirty-four million, forty-three thousand, four hundred thirty-one".