201122183623 has 2 divisors, whose sum is σ = 201122183624. Its totient is φ = 201122183622.

The previous prime is 201122183579. The next prime is 201122183627. The reversal of 201122183623 is 326381221102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201122183623 is a prime.

It is a super-2 number, since 2×201122183623² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122183627) 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, 100561091811 + 100561091812.

It is an arithmetic number, because the mean of its divisors is an integer number (100561091812).

Almost surely, 2^201122183623 is an apocalyptic number.

201122183623 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122183623 is an equidigital number, since it uses as much as digits as its factorization.

201122183623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 201122183623 in words is "two hundred one billion, one hundred twenty-two million, one hundred eighty-three thousand, six hundred twenty-three".