431340420503 has 8 divisors (see below), whose sum is σ = 446909857920. Its totient is φ = 415874435040.

The previous prime is 431340420473. The next prime is 431340420557. The reversal of 431340420503 is 305024043134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 431340420503 - 2¹⁴ = 431340404119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431340420593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25854500 + ... + 25871177.

It is an arithmetic number, because the mean of its divisors is an integer number (55863732240).

Almost surely, 2^431340420503 is an apocalyptic number.

431340420503 is a deficient number, since it is larger than the sum of its proper divisors (15569437417).

431340420503 is a wasteful number, since it uses less digits than its factorization.

431340420503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51725977.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 431340420503 its reverse (305024043134), we get a palindrome (736364463637).

The spelling of 431340420503 in words is "four hundred thirty-one billion, three hundred forty million, four hundred twenty thousand, five hundred three".