201113331321 has 16 divisors (see below), whose sum is σ = 312240645504. Its totient is φ = 112753565184.

The previous prime is 201113331283. The next prime is 201113331407. The reversal of 201113331321 is 123133311102.

It is a happy number.

It is not a de Polignac number, because 201113331321 - 2⁶ = 201113331257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (201113331821) 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, 90346296 + ... + 90348521.

It is an arithmetic number, because the mean of its divisors is an integer number (19515040344).

Almost surely, 2^201113331321 is an apocalyptic number.

201113331321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201113331321 is a deficient number, since it is larger than the sum of its proper divisors (111127314183).

201113331321 is a wasteful number, since it uses less digits than its factorization.

201113331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180694880.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 201113331321 its reverse (123133311102), we get a palindrome (324246642423).

The spelling of 201113331321 in words is "two hundred one billion, one hundred thirteen million, three hundred thirty-one thousand, three hundred twenty-one".