321203310223 has 4 divisors (see below), whose sum is σ = 321496112880. Its totient is φ = 320910507568.

The previous prime is 321203310217. The next prime is 321203310229. The reversal of 321203310223 is 322013302123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322013302123 = 66943 ⋅4810261.

It is an interprime number because it is at equal distance from previous prime (321203310217) and next prime (321203310229).

It is a cyclic number.

It is not a de Polignac number, because 321203310223 - 2¹⁷ = 321203179151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321203310194 and 321203310203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321203310229) 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, 146399683 + ... + 146401876.

It is an arithmetic number, because the mean of its divisors is an integer number (80374028220).

Almost surely, 2^321203310223 is an apocalyptic number.

321203310223 is a deficient number, since it is larger than the sum of its proper divisors (292802657).

321203310223 is a wasteful number, since it uses less digits than its factorization.

321203310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292802656.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 321203310223 its reverse (322013302123), we get a palindrome (643216612346).

The spelling of 321203310223 in words is "three hundred twenty-one billion, two hundred three million, three hundred ten thousand, two hundred twenty-three".