201130320623 has 2 divisors, whose sum is σ = 201130320624. Its totient is φ = 201130320622.

The previous prime is 201130320617. The next prime is 201130320659. The reversal of 201130320623 is 326023031102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201130320623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201130323623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100565160311 + 100565160312.

It is an arithmetic number, because the mean of its divisors is an integer number (100565160312).

Almost surely, 2^201130320623 is an apocalyptic number.

201130320623 is a deficient number, since it is larger than the sum of its proper divisors (1).

201130320623 is an equidigital number, since it uses as much as digits as its factorization.

201130320623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 201130320623 its reverse (326023031102), we get a palindrome (527153351725).

The spelling of 201130320623 in words is "two hundred one billion, one hundred thirty million, three hundred twenty thousand, six hundred twenty-three".