31221103310011 has 8 divisors (see below), whose sum is σ = 31232228492960. Its totient is φ = 31209979503168.

The previous prime is 31221103310003. The next prime is 31221103310021. The reversal of 31221103310011 is 11001330112213.

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

It is a cyclic number.

It is not a de Polignac number, because 31221103310011 - 2³ = 31221103310003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31221103310021) 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, 46154845 + ... + 46826401.

It is an arithmetic number, because the mean of its divisors is an integer number (3904028561620).

Almost surely, 2^{31221103310011} is an apocalyptic number.

31221103310011 is a deficient number, since it is larger than the sum of its proper divisors (11125182949).

31221103310011 is a wasteful number, since it uses less digits than its factorization.

31221103310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688053.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31221103310011 its reverse (11001330112213), we get a palindrome (42222433422224).

The spelling of 31221103310011 in words is "thirty-one trillion, two hundred twenty-one billion, one hundred three million, three hundred ten thousand, eleven".