321101113129 has 2 divisors, whose sum is σ = 321101113130. Its totient is φ = 321101113128.

The previous prime is 321101113127. The next prime is 321101113159. The reversal of 321101113129 is 921311101123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181240072729 + 139861040400 = 425723^2 + 373980^2 .

It is a cyclic number.

It is not a de Polignac number, because 321101113129 - 2¹ = 321101113127 is a prime.

Together with 321101113127, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (321101113127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160550556564 + 160550556565.

It is an arithmetic number, because the mean of its divisors is an integer number (160550556565).

Almost surely, 2^321101113129 is an apocalyptic number.

It is an amenable number.

321101113129 is a deficient number, since it is larger than the sum of its proper divisors (1).

321101113129 is an equidigital number, since it uses as much as digits as its factorization.

321101113129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 321101113129 in words is "three hundred twenty-one billion, one hundred one million, one hundred thirteen thousand, one hundred twenty-nine".