321354431153 has 12 divisors (see below), whose sum is σ = 373964884992. Its totient is φ = 275340237480.

The previous prime is 321354431129. The next prime is 321354431221. The reversal of 321354431153 is 351134453123.

It is not a de Polignac number, because 321354431153 - 2²⁶ = 321287322289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321354431053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1138625 + ... + 1392542.

It is an arithmetic number, because the mean of its divisors is an integer number (31163740416).

Almost surely, 2^321354431153 is an apocalyptic number.

It is an amenable number.

321354431153 is a deficient number, since it is larger than the sum of its proper divisors (52610453839).

321354431153 is a wasteful number, since it uses less digits than its factorization.

321354431153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2533772 (or 2533765 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

Adding to 321354431153 its reverse (351134453123), we get a palindrome (672488884276).

The spelling of 321354431153 in words is "three hundred twenty-one billion, three hundred fifty-four million, four hundred thirty-one thousand, one hundred fifty-three".