201231023113 has 8 divisors (see below), whose sum is σ = 211698331200. Its totient is φ = 190998935568.

The previous prime is 201231023111. The next prime is 201231023159. The reversal of 201231023113 is 311320132102.

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

It is not a de Polignac number, because 201231023113 - 2¹ = 201231023111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201231023111) 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, 58803381 + ... + 58806802.

It is an arithmetic number, because the mean of its divisors is an integer number (26462291400).

Almost surely, 2^201231023113 is an apocalyptic number.

It is an amenable number.

201231023113 is a deficient number, since it is larger than the sum of its proper divisors (10467308087).

201231023113 is a wasteful number, since it uses less digits than its factorization.

201231023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117610271.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201231023113 its reverse (311320132102), we get a palindrome (512551155215).

The spelling of 201231023113 in words is "two hundred one billion, two hundred thirty-one million, twenty-three thousand, one hundred thirteen".