324351143993 has 2 divisors, whose sum is σ = 324351143994. Its totient is φ = 324351143992.

The previous prime is 324351143989. The next prime is 324351144001. The reversal of 324351143993 is 399341153423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165223551529 + 159127592464 = 406477^2 + 398908^2 .

It is an emirp because it is prime and its reverse (399341153423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 324351143993 - 2² = 324351143989 is a prime.

It is not a weakly prime, because it can be changed into another prime (324351143933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162175571996 + 162175571997.

It is an arithmetic number, because the mean of its divisors is an integer number (162175571997).

Almost surely, 2^324351143993 is an apocalyptic number.

It is an amenable number.

324351143993 is a deficient number, since it is larger than the sum of its proper divisors (1).

324351143993 is an equidigital number, since it uses as much as digits as its factorization.

324351143993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1049760, while the sum is 47.

The spelling of 324351143993 in words is "three hundred twenty-four billion, three hundred fifty-one million, one hundred forty-three thousand, nine hundred ninety-three".