321111000029 has 2 divisors, whose sum is σ = 321111000030. Its totient is φ = 321111000028.

The previous prime is 321110999941. The next prime is 321111000047. The reversal of 321111000029 is 920000111123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273225744100 + 47885255929 = 522710^2 + 218827^2 .

It is a cyclic number.

It is not a de Polignac number, because 321111000029 - 2⁸ = 321110999773 is a prime.

It is a super-2 number, since 2×321111000029² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321111000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160555500014 + 160555500015.

It is an arithmetic number, because the mean of its divisors is an integer number (160555500015).

Almost surely, 2^321111000029 is an apocalyptic number.

It is an amenable number.

321111000029 is a deficient number, since it is larger than the sum of its proper divisors (1).

321111000029 is an equidigital number, since it uses as much as digits as its factorization.

321111000029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 321111000029 in words is "three hundred twenty-one billion, one hundred eleven million, twenty-nine", and thus it is an aban number.