323121665005499 has 4 divisors (see below), whose sum is σ = 329218300194336. Its totient is φ = 317025029816664.

The previous prime is 323121665005453. The next prime is 323121665005523. The reversal of 323121665005499 is 994500566121323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 323121665005499 - 2²⁸ = 323121396570043 is a prime.

It is a super-2 number, since 2×323121665005499² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (323121065005499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3048317594339 + ... + 3048317594444.

It is an arithmetic number, because the mean of its divisors is an integer number (82304575048584).

Almost surely, 2^{323121665005499} is an apocalyptic number.

323121665005499 is a deficient number, since it is larger than the sum of its proper divisors (6096635188837).

323121665005499 is an equidigital number, since it uses as much as digits as its factorization.

323121665005499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096635188836.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 323121665005499 in words is "three hundred twenty-three trillion, one hundred twenty-one billion, six hundred sixty-five million, five thousand, four hundred ninety-nine".