321255350511 has 16 divisors (see below), whose sum is σ = 429936648960. Its totient is φ = 213372434880.

The previous prime is 321255350501. The next prime is 321255350531. The reversal of 321255350511 is 115053552123.

It is a happy number.

It is not a de Polignac number, because 321255350511 - 2⁶ = 321255350447 is a prime.

It is a super-2 number, since 2×321255350511² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321255350501) 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, 4755670 + ... + 4822748.

It is an arithmetic number, because the mean of its divisors is an integer number (26871040560).

Almost surely, 2^321255350511 is an apocalyptic number.

321255350511 is a deficient number, since it is larger than the sum of its proper divisors (108681298449).

321255350511 is a wasteful number, since it uses less digits than its factorization.

321255350511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73006.

The product of its (nonzero) digits is 22500, while the sum is 33.

The spelling of 321255350511 in words is "three hundred twenty-one billion, two hundred fifty-five million, three hundred fifty thousand, five hundred eleven".