321040021120111 has 4 divisors (see below), whose sum is σ = 321044571787000. Its totient is φ = 321035470453224.

The previous prime is 321040021120097. The next prime is 321040021120123. The reversal of 321040021120111 is 111021120040123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321040021120111 - 2²¹ = 321040019022959 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 (321040021120141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2275227621 + ... + 2275368718.

It is an arithmetic number, because the mean of its divisors is an integer number (80261142946750).

Almost surely, 2^{321040021120111} is an apocalyptic number.

321040021120111 is a deficient number, since it is larger than the sum of its proper divisors (4550666889).

321040021120111 is an equidigital number, since it uses as much as digits as its factorization.

321040021120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4550666888.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 321040021120111 its reverse (111021120040123), we get a palindrome (432061141160234).

The spelling of 321040021120111 in words is "three hundred twenty-one trillion, forty billion, twenty-one million, one hundred twenty thousand, one hundred eleven".