321146255099 has 2 divisors, whose sum is σ = 321146255100. Its totient is φ = 321146255098.

The previous prime is 321146255093. The next prime is 321146255117. The reversal of 321146255099 is 990552641123.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 321146255099 - 2⁴ = 321146255083 is a prime.

It is a super-2 number, since 2×321146255099² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (321146255093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160573127549 + 160573127550.

It is an arithmetic number, because the mean of its divisors is an integer number (160573127550).

Almost surely, 2^321146255099 is an apocalyptic number.

321146255099 is a deficient number, since it is larger than the sum of its proper divisors (1).

321146255099 is an equidigital number, since it uses as much as digits as its factorization.

321146255099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 321146255099 in words is "three hundred twenty-one billion, one hundred forty-six million, two hundred fifty-five thousand, ninety-nine".