403043430431 has 4 divisors (see below), whose sum is σ = 410648023512. Its totient is φ = 395438837352.

The previous prime is 403043430421. The next prime is 403043430509. The reversal of 403043430431 is 134034340304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 403043430431 - 2¹⁰ = 403043429407 is a prime.

It is a super-2 number, since 2×403043430431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 403043430394 and 403043430403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403043430421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3802296461 + ... + 3802296566.

It is an arithmetic number, because the mean of its divisors is an integer number (102662005878).

Almost surely, 2^403043430431 is an apocalyptic number.

403043430431 is a deficient number, since it is larger than the sum of its proper divisors (7604593081).

403043430431 is an equidigital number, since it uses as much as digits as its factorization.

403043430431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7604593080.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 403043430431 its reverse (134034340304), we get a palindrome (537077770735).

The spelling of 403043430431 in words is "four hundred three billion, forty-three million, four hundred thirty thousand, four hundred thirty-one".