221131103313 has 8 divisors (see below), whose sum is σ = 295631932288. Its totient is φ = 147025504944.

The previous prime is 221131103309. The next prime is 221131103327. The reversal of 221131103313 is 313301131122.

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 221131103313 - 2² = 221131103309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221131103313.

It is not an unprimeable number, because it can be changed into a prime (221131103113) 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, 98806345 + ... + 98808582.

It is an arithmetic number, because the mean of its divisors is an integer number (36953991536).

Almost surely, 2^221131103313 is an apocalyptic number.

It is an amenable number.

221131103313 is a deficient number, since it is larger than the sum of its proper divisors (74500828975).

221131103313 is a wasteful number, since it uses less digits than its factorization.

221131103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197615303.

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

Adding to 221131103313 its reverse (313301131122), we get a palindrome (534432234435).

The spelling of 221131103313 in words is "two hundred twenty-one billion, one hundred thirty-one million, one hundred three thousand, three hundred thirteen".