201023113215 has 16 divisors (see below), whose sum is σ = 323685628128. Its totient is φ = 106529444736.

The previous prime is 201023113199. The next prime is 201023113217. The reversal of 201023113215 is 512311320102.

It is not a de Polignac number, because 201023113215 - 2⁴ = 201023113199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201023113191 and 201023113200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201023113217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42677712 + ... + 42682421.

It is an arithmetic number, because the mean of its divisors is an integer number (20230351758).

Almost surely, 2^201023113215 is an apocalyptic number.

201023113215 is a deficient number, since it is larger than the sum of its proper divisors (122662514913).

201023113215 is a wasteful number, since it uses less digits than its factorization.

201023113215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85360298.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 201023113215 its reverse (512311320102), we get a palindrome (713334433317).

The spelling of 201023113215 in words is "two hundred one billion, twenty-three million, one hundred thirteen thousand, two hundred fifteen".