321120212311121 has 16 divisors (see below), whose sum is σ = 333790564141440. Its totient is φ = 308556544558080.

The previous prime is 321120212311079. The next prime is 321120212311133. The reversal of 321120212311121 is 121113212021123.

It is a cyclic number.

It is not a de Polignac number, because 321120212311121 - 2²² = 321120208116817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321120212311141) 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, 87895940 + ... + 91476426.

It is an arithmetic number, because the mean of its divisors is an integer number (20861910258840).

Almost surely, 2^{321120212311121} is an apocalyptic number.

It is an amenable number.

321120212311121 is a deficient number, since it is larger than the sum of its proper divisors (12670351830319).

321120212311121 is a wasteful number, since it uses less digits than its factorization.

321120212311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595384.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 321120212311121 its reverse (121113212021123), we get a palindrome (442233424332244).

The spelling of 321120212311121 in words is "three hundred twenty-one trillion, one hundred twenty billion, two hundred twelve million, three hundred eleven thousand, one hundred twenty-one".