201211023 has 8 divisors (see below), whose sum is σ = 288918448. Its totient is φ = 123822144.

The previous prime is 201211013. The next prime is 201211027. The reversal of 201211023 is 320112102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201211023 - 2⁶ = 201210959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579590 + ... + 2579667.

It is an arithmetic number, because the mean of its divisors is an integer number (36114806).

Almost surely, 2^201211023 is an apocalyptic number.

201211023 is a deficient number, since it is larger than the sum of its proper divisors (87707425).

201211023 is a wasteful number, since it uses less digits than its factorization.

201211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5159273.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 201211023 is about 14184.8871338478. The cubic root of 201211023 is about 585.9815241489.

Adding to 201211023 its reverse (320112102), we get a palindrome (521323125).

The spelling of 201211023 in words is "two hundred one million, two hundred eleven thousand, twenty-three".