321134134523 has 2 divisors, whose sum is σ = 321134134524. Its totient is φ = 321134134522.

The previous prime is 321134134511. The next prime is 321134134577. The reversal of 321134134523 is 325431431123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321134134523 - 2⁸ = 321134134267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321134134523.

It is not a weakly prime, because it can be changed into another prime (321137134523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160567067261 + 160567067262.

It is an arithmetic number, because the mean of its divisors is an integer number (160567067262).

Almost surely, 2^321134134523 is an apocalyptic number.

321134134523 is a deficient number, since it is larger than the sum of its proper divisors (1).

321134134523 is an equidigital number, since it uses as much as digits as its factorization.

321134134523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

Adding to 321134134523 its reverse (325431431123), we get a palindrome (646565565646).

The spelling of 321134134523 in words is "three hundred twenty-one billion, one hundred thirty-four million, one hundred thirty-four thousand, five hundred twenty-three".