128431422403 has 8 divisors (see below), whose sum is σ = 129422232576. Its totient is φ = 127444317000.

The previous prime is 128431422389. The next prime is 128431422419. The reversal of 128431422403 is 304224134821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128431422403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128431422443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856573 + ... + 995278.

It is an arithmetic number, because the mean of its divisors is an integer number (16177779072).

Almost surely, 2^128431422403 is an apocalyptic number.

128431422403 is a deficient number, since it is larger than the sum of its proper divisors (990810173).

128431422403 is a wasteful number, since it uses less digits than its factorization.

128431422403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852385.

The product of its (nonzero) digits is 36864, while the sum is 34.

The spelling of 128431422403 in words is "one hundred twenty-eight billion, four hundred thirty-one million, four hundred twenty-two thousand, four hundred three".