321430402131423 has 16 divisors (see below), whose sum is σ = 461598503439360. Its totient is φ = 197778718731744.

The previous prime is 321430402131341. The next prime is 321430402131439. The reversal of 321430402131423 is 324131204034123.

It is not a de Polignac number, because 321430402131423 - 2¹⁰ = 321430402130399 is a prime.

It is a super-3 number, since 3×321430402131423³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321430402131023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512300311 + ... + 512927352.

It is an arithmetic number, because the mean of its divisors is an integer number (28849906464960).

Almost surely, 2^{321430402131423} is an apocalyptic number.

321430402131423 is a deficient number, since it is larger than the sum of its proper divisors (140168101307937).

321430402131423 is a wasteful number, since it uses less digits than its factorization.

321430402131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025235718.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 321430402131423 its reverse (324131204034123), we get a palindrome (645561606165546).

The spelling of 321430402131423 in words is "three hundred twenty-one trillion, four hundred thirty billion, four hundred two million, one hundred thirty-one thousand, four hundred twenty-three".