321111130999 has 2 divisors, whose sum is σ = 321111131000. Its totient is φ = 321111130998.

The previous prime is 321111130973. The next prime is 321111131021. The reversal of 321111130999 is 999031111123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321111130999 - 2⁷ = 321111130871 is a prime.

It is a super-2 number, since 2×321111130999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321111130099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160555565499 + 160555565500.

It is an arithmetic number, because the mean of its divisors is an integer number (160555565500).

Almost surely, 2^321111130999 is an apocalyptic number.

321111130999 is a deficient number, since it is larger than the sum of its proper divisors (1).

321111130999 is an equidigital number, since it uses as much as digits as its factorization.

321111130999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 40.

The spelling of 321111130999 in words is "three hundred twenty-one billion, one hundred eleven million, one hundred thirty thousand, nine hundred ninety-nine".