321421024023403 has 8 divisors (see below), whose sum is σ = 322801429622256. Its totient is φ = 320040626256000.

The previous prime is 321421024023391. The next prime is 321421024023481. The reversal of 321421024023403 is 304320420124123.

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-321421024023403 is a prime.

It is a super-2 number, since 2×321421024023403² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321421024029403) 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, 89446063 + ... + 92970103.

It is an arithmetic number, because the mean of its divisors is an integer number (40350178702782).

Almost surely, 2^{321421024023403} is an apocalyptic number.

321421024023403 is a deficient number, since it is larger than the sum of its proper divisors (1380405598853).

321421024023403 is a wasteful number, since it uses less digits than its factorization.

321421024023403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915725.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 321421024023403 its reverse (304320420124123), we get a palindrome (625741444147526).

The spelling of 321421024023403 in words is "three hundred twenty-one trillion, four hundred twenty-one billion, twenty-four million, twenty-three thousand, four hundred three".