201312220012723 has 2 divisors, whose sum is σ = 201312220012724. Its totient is φ = 201312220012722.

The previous prime is 201312220012699. The next prime is 201312220012763. The reversal of 201312220012723 is 327210022213102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201312220012723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201312220012691 and 201312220012700.

It is not a weakly prime, because it can be changed into another prime (201312220012763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100656110006361 + 100656110006362.

It is an arithmetic number, because the mean of its divisors is an integer number (100656110006362).

Almost surely, 2^{201312220012723} is an apocalyptic number.

201312220012723 is a deficient number, since it is larger than the sum of its proper divisors (1).

201312220012723 is an equidigital number, since it uses as much as digits as its factorization.

201312220012723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 201312220012723 its reverse (327210022213102), we get a palindrome (528522242225825).

The spelling of 201312220012723 in words is "two hundred one trillion, three hundred twelve billion, two hundred twenty million, twelve thousand, seven hundred twenty-three".