1331124211331 has 4 divisors (see below), whose sum is σ = 1331514917472. Its totient is φ = 1330733505192.

The previous prime is 1331124211283. The next prime is 1331124211367.

1331124211331 is nontrivially palindromic in base 10.

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 1331124211331 - 2³⁴ = 1313944342147 is a prime.

It is a super-2 number, since 2×1331124211331² (a number of 25 digits) contains 22 as substring.

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 1331124211331.

It is not an unprimeable number, because it can be changed into a prime (1331124211531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195347960 + ... + 195354773.

It is an arithmetic number, because the mean of its divisors is an integer number (332878729368).

Almost surely, 2^{1331124211331} is an apocalyptic number.

1331124211331 is a deficient number, since it is larger than the sum of its proper divisors (390706141).

1331124211331 is an equidigital number, since it uses as much as digits as its factorization.

1331124211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390706140.

The product of its digits is 1296, while the sum is 26.

The spelling of 1331124211331 in words is "one trillion, three hundred thirty-one billion, one hundred twenty-four million, two hundred eleven thousand, three hundred thirty-one".