2001302320123 has 2 divisors, whose sum is σ = 2001302320124. Its totient is φ = 2001302320122.

The previous prime is 2001302320081. The next prime is 2001302320133. The reversal of 2001302320123 is 3210232031002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001302320123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2001302320123.

It is not a weakly prime, because it can be changed into another prime (2001302320133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000651160061 + 1000651160062.

It is an arithmetic number, because the mean of its divisors is an integer number (1000651160062).

Almost surely, 2^{2001302320123} is an apocalyptic number.

2001302320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001302320123 is an equidigital number, since it uses as much as digits as its factorization.

2001302320123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2001302320123 its reverse (3210232031002), we get a palindrome (5211534351125).

The spelling of 2001302320123 in words is "two trillion, one billion, three hundred two million, three hundred twenty thousand, one hundred twenty-three".