201120201101123 has 2 divisors, whose sum is σ = 201120201101124. Its totient is φ = 201120201101122.

The previous prime is 201120201101093. The next prime is 201120201101213. The reversal of 201120201101123 is 321101102021102.

It is a happy number.

Together with next prime (201120201101213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201120201101123 is a prime.

It is a super-2 number, since 2×201120201101123² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201120201101723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560100550561 + 100560100550562.

It is an arithmetic number, because the mean of its divisors is an integer number (100560100550562).

Almost surely, 2^{201120201101123} is an apocalyptic number.

201120201101123 is a deficient number, since it is larger than the sum of its proper divisors (1).

201120201101123 is an equidigital number, since it uses as much as digits as its factorization.

201120201101123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201120201101123 its reverse (321101102021102), we get a palindrome (522221303122225).

The spelling of 201120201101123 in words is "two hundred one trillion, one hundred twenty billion, two hundred one million, one hundred one thousand, one hundred twenty-three".