321353013652231 has 4 divisors (see below), whose sum is σ = 350566923984264. Its totient is φ = 292139103320200.

The previous prime is 321353013652123. The next prime is 321353013652259. The reversal of 321353013652231 is 132256310353123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321353013652231 - 2¹⁹ = 321353013127943 is a prime.

It is a super-2 number, since 2×321353013652231² (a number of 30 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321353013652031) 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, 14606955166000 + ... + 14606955166021.

It is an arithmetic number, because the mean of its divisors is an integer number (87641730996066).

Almost surely, 2^{321353013652231} is an apocalyptic number.

321353013652231 is a deficient number, since it is larger than the sum of its proper divisors (29213910332033).

321353013652231 is a wasteful number, since it uses less digits than its factorization.

321353013652231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29213910332032.

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 321353013652231 in words is "three hundred twenty-one trillion, three hundred fifty-three billion, thirteen million, six hundred fifty-two thousand, two hundred thirty-one".