3111331221131 has 8 divisors (see below), whose sum is σ = 3557062270944. Its totient is φ = 2665913961600.

The previous prime is 3111331221101. The next prime is 3111331221137. The reversal of 3111331221131 is 1311221331113.

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 3111331221131 - 2²⁶ = 3111264112267 is a prime.

It is a super-2 number, since 2×3111331221131² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3111331221097 and 3111331221106.

It is not an unprimeable number, because it can be changed into a prime (3111331221137) 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, 78426320 + ... + 78465981.

It is an arithmetic number, because the mean of its divisors is an integer number (444632783868).

Almost surely, 2^{3111331221131} is an apocalyptic number.

3111331221131 is a deficient number, since it is larger than the sum of its proper divisors (445731049813).

3111331221131 is a wasteful number, since it uses less digits than its factorization.

3111331221131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156895141.

The product of its digits is 324, while the sum is 23.

Adding to 3111331221131 its reverse (1311221331113), we get a palindrome (4422552552244).

The spelling of 3111331221131 in words is "three trillion, one hundred eleven billion, three hundred thirty-one million, two hundred twenty-one thousand, one hundred thirty-one".