8231421803 has 8 divisors (see below), whose sum is σ = 8980594416. Its totient is φ = 7482392800.

The previous prime is 8231421767. The next prime is 8231421839. The reversal of 8231421803 is 3081241328.

It is an interprime number because it is at equal distance from previous prime (8231421767) and next prime (8231421839).

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 8231421803 - 2¹⁰ = 8231420779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8231421803.

It is not an unprimeable number, because it can be changed into a prime (8231421853) 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, 109613 + ... + 168753.

It is an arithmetic number, because the mean of its divisors is an integer number (1122574302).

Almost surely, 2^8231421803 is an apocalyptic number.

8231421803 is a deficient number, since it is larger than the sum of its proper divisors (749172613).

8231421803 is a wasteful number, since it uses less digits than its factorization.

8231421803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71805.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8231421803 is about 90727.1833741134. The cubic root of 8231421803 is about 2019.1021238329.

It can be divided in two parts, 8231 and 421803, that added together give a palindrome (430034).

The spelling of 8231421803 in words is "eight billion, two hundred thirty-one million, four hundred twenty-one thousand, eight hundred three".