321032121311 has 16 divisors (see below), whose sum is σ = 362920946688. Its totient is φ = 281333913600.

The previous prime is 321032121281. The next prime is 321032121367. The reversal of 321032121311 is 113121230123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321032121311 - 2²⁶ = 320965012447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321032111311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1743965 + ... + 1919238.

It is an arithmetic number, because the mean of its divisors is an integer number (22682559168).

Almost surely, 2^321032121311 is an apocalyptic number.

321032121311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

321032121311 is a deficient number, since it is larger than the sum of its proper divisors (41888825377).

321032121311 is a wasteful number, since it uses less digits than its factorization.

321032121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3663502.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 321032121311 its reverse (113121230123), we get a palindrome (434153351434).

The spelling of 321032121311 in words is "three hundred twenty-one billion, thirty-two million, one hundred twenty-one thousand, three hundred eleven".