201023131200673 has 2 divisors, whose sum is σ = 201023131200674. Its totient is φ = 201023131200672.

The previous prime is 201023131200649. The next prime is 201023131200679. The reversal of 201023131200673 is 376002131320102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187160786371584 + 13862344829089 = 13680672^2 + 3723217^2 .

It is a cyclic number.

It is not a de Polignac number, because 201023131200673 - 2⁴¹ = 198824107945121 is a prime.

It is not a weakly prime, because it can be changed into another prime (201023131200679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100511565600336 + 100511565600337.

It is an arithmetic number, because the mean of its divisors is an integer number (100511565600337).

Almost surely, 2^{201023131200673} is an apocalyptic number.

It is an amenable number.

201023131200673 is a deficient number, since it is larger than the sum of its proper divisors (1).

201023131200673 is an equidigital number, since it uses as much as digits as its factorization.

201023131200673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 201023131200673 its reverse (376002131320102), we get a palindrome (577025262520775).

The spelling of 201023131200673 in words is "two hundred one trillion, twenty-three billion, one hundred thirty-one million, two hundred thousand, six hundred seventy-three".