201123110051 has 2 divisors, whose sum is σ = 201123110052. Its totient is φ = 201123110050.

The previous prime is 201123109951. The next prime is 201123110063. The reversal of 201123110051 is 150011321102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201123110051 - 2²² = 201118915747 is a prime.

It is not a weakly prime, because it can be changed into another prime (201123140051) 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, 100561555025 + 100561555026.

It is an arithmetic number, because the mean of its divisors is an integer number (100561555026).

Almost surely, 2^201123110051 is an apocalyptic number.

201123110051 is a deficient number, since it is larger than the sum of its proper divisors (1).

201123110051 is an equidigital number, since it uses as much as digits as its factorization.

201123110051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 201123110051 its reverse (150011321102), we get a palindrome (351134431153).

The spelling of 201123110051 in words is "two hundred one billion, one hundred twenty-three million, one hundred ten thousand, fifty-one".