999334323401 has 2 divisors, whose sum is σ = 999334323402. Its totient is φ = 999334323400.

The previous prime is 999334323391. The next prime is 999334323409. The reversal of 999334323401 is 104323433999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 976339633801 + 22994689600 = 988099^2 + 151640^2 .

It is an emirp because it is prime and its reverse (104323433999) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999334323401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 999334323401.

It is not a weakly prime, because it can be changed into another prime (999334323409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499667161700 + 499667161701.

It is an arithmetic number, because the mean of its divisors is an integer number (499667161701).

Almost surely, 2^999334323401 is an apocalyptic number.

It is an amenable number.

999334323401 is a deficient number, since it is larger than the sum of its proper divisors (1).

999334323401 is an equidigital number, since it uses as much as digits as its factorization.

999334323401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 50.

The spelling of 999334323401 in words is "nine hundred ninety-nine billion, three hundred thirty-four million, three hundred twenty-three thousand, four hundred one".