1331212311109 has 8 divisors (see below), whose sum is σ = 1342092948768. Its totient is φ = 1320342563280.

The previous prime is 1331212311097. The next prime is 1331212311133. The reversal of 1331212311109 is 9011132121331.

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 1331212311109 - 2¹¹ = 1331212309061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331212311509) 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, 2476882 + ... + 2966035.

It is an arithmetic number, because the mean of its divisors is an integer number (167761618596).

Almost surely, 2^{1331212311109} is an apocalyptic number.

It is an amenable number.

1331212311109 is a deficient number, since it is larger than the sum of its proper divisors (10880637659).

1331212311109 is a wasteful number, since it uses less digits than its factorization.

1331212311109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444915.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 1331212311109 in words is "one trillion, three hundred thirty-one billion, two hundred twelve million, three hundred eleven thousand, one hundred nine".