321113021101 has 2 divisors, whose sum is σ = 321113021102. Its totient is φ = 321113021100.

The previous prime is 321113021051. The next prime is 321113021129. The reversal of 321113021101 is 101120311123.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314159129001 + 6953892100 = 560499^2 + 83390^2 .

It is a cyclic number.

It is not a de Polignac number, because 321113021101 - 2¹⁵ = 321112988333 is a prime.

It is a super-3 number, since 3×321113021101³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321113021501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160556510550 + 160556510551.

It is an arithmetic number, because the mean of its divisors is an integer number (160556510551).

Almost surely, 2^321113021101 is an apocalyptic number.

It is an amenable number.

321113021101 is a deficient number, since it is larger than the sum of its proper divisors (1).

321113021101 is an equidigital number, since it uses as much as digits as its factorization.

321113021101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 321113021101 its reverse (101120311123), we get a palindrome (422233332224).

The spelling of 321113021101 in words is "three hundred twenty-one billion, one hundred thirteen million, twenty-one thousand, one hundred one".