201201110023 has 4 divisors (see below), whose sum is σ = 202254519168. Its totient is φ = 200147700880.

The previous prime is 201201109979. The next prime is 201201110041. The reversal of 201201110023 is 320011102102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201201110023 - 2²¹ = 201199012871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201201109985 and 201201110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201201110053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526704286 + ... + 526704667.

It is an arithmetic number, because the mean of its divisors is an integer number (50563629792).

Almost surely, 2^201201110023 is an apocalyptic number.

201201110023 is a deficient number, since it is larger than the sum of its proper divisors (1053409145).

201201110023 is a wasteful number, since it uses less digits than its factorization.

201201110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053409144.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201201110023 its reverse (320011102102), we get a palindrome (521212212125).

The spelling of 201201110023 in words is "two hundred one billion, two hundred one million, one hundred ten thousand, twenty-three".