201023013111 has 8 divisors (see below), whose sum is σ = 269829548400. Its totient is φ = 133115909952.

The previous prime is 201023013101. The next prime is 201023013127. The reversal of 201023013111 is 111310320102.

It is a happy number.

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

It is not a de Polignac number, because 201023013111 - 2³⁰ = 199949271287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201023013101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224857510 + ... + 224858403.

It is an arithmetic number, because the mean of its divisors is an integer number (33728693550).

Almost surely, 2^201023013111 is an apocalyptic number.

201023013111 is a deficient number, since it is larger than the sum of its proper divisors (68806535289).

201023013111 is a wasteful number, since it uses less digits than its factorization.

201023013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449716065.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 201023013111 its reverse (111310320102), we get a palindrome (312333333213).

The spelling of 201023013111 in words is "two hundred one billion, twenty-three million, thirteen thousand, one hundred eleven".