703431206364421 has 4 divisors (see below), whose sum is σ = 704224251693792. Its totient is φ = 702638161035052.

The previous prime is 703431206364401. The next prime is 703431206364437. The reversal of 703431206364421 is 124463602134307.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 703431206364421 - 2⁵ = 703431206364389 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 (703431206364401) 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, 396522663355 + ... + 396522665128.

It is an arithmetic number, because the mean of its divisors is an integer number (176056062923448).

Almost surely, 2^{703431206364421} is an apocalyptic number.

It is an amenable number.

703431206364421 is a deficient number, since it is larger than the sum of its proper divisors (793045329371).

703431206364421 is an equidigital number, since it uses as much as digits as its factorization.

703431206364421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793045329370.

The product of its (nonzero) digits is 1741824, while the sum is 46.

Adding to 703431206364421 its reverse (124463602134307), we get a palindrome (827894808498728).

The spelling of 703431206364421 in words is "seven hundred three trillion, four hundred thirty-one billion, two hundred six million, three hundred sixty-four thousand, four hundred twenty-one".