3311031221231 has 4 divisors (see below), whose sum is σ = 3332958580464. Its totient is φ = 3289103862000.

The previous prime is 3311031221227. The next prime is 3311031221233. The reversal of 3311031221231 is 1321221301133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3311031221231 - 2² = 3311031221227 is a prime.

It is a super-2 number, since 2×3311031221231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3311031221197 and 3311031221206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3311031221233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10963679390 + ... + 10963679691.

It is an arithmetic number, because the mean of its divisors is an integer number (833239645116).

Almost surely, 2^{3311031221231} is an apocalyptic number.

3311031221231 is a deficient number, since it is larger than the sum of its proper divisors (21927359233).

3311031221231 is a wasteful number, since it uses less digits than its factorization.

3311031221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21927359232.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 3311031221231 its reverse (1321221301133), we get a palindrome (4632252522364).

The spelling of 3311031221231 in words is "three trillion, three hundred eleven billion, thirty-one million, two hundred twenty-one thousand, two hundred thirty-one".