321104429 has 2 divisors, whose sum is σ = 321104430. Its totient is φ = 321104428.

The previous prime is 321104419. The next prime is 321104447. The reversal of 321104429 is 924401123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172922500 + 148181929 = 13150^2 + 12173^2 .

It is a cyclic number.

It is not a de Polignac number, because 321104429 - 2¹² = 321100333 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 321104398 and 321104407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321104419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160552214 + 160552215.

It is an arithmetic number, because the mean of its divisors is an integer number (160552215).

Almost surely, 2^321104429 is an apocalyptic number.

It is an amenable number.

321104429 is a deficient number, since it is larger than the sum of its proper divisors (1).

321104429 is an equidigital number, since it uses as much as digits as its factorization.

321104429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 321104429 is about 17919.3869593801. The cubic root of 321104429 is about 684.7763697157.

The spelling of 321104429 in words is "three hundred twenty-one million, one hundred four thousand, four hundred twenty-nine".