1331232311331 has 48 divisors (see below), whose sum is σ = 2085184221120. Its totient is φ = 813547203840.

The previous prime is 1331232311327. The next prime is 1331232311333. The reversal of 1331232311331 is 1331132321331.

1331232311331 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 2 + 323 + 1 + 1 + 331 = 666.

It is not a de Polignac number, because 1331232311331 - 2² = 1331232311327 is a prime.

It is a super-2 number, since 2×1331232311331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1331232311295 and 1331232311304.

It is not an unprimeable number, because it can be changed into a prime (1331232311333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12416130 + ... + 12522888.

It is an arithmetic number, because the mean of its divisors is an integer number (43441337940).

Almost surely, 2^{1331232311331} is an apocalyptic number.

1331232311331 is a deficient number, since it is larger than the sum of its proper divisors (753951909789).

1331232311331 is a wasteful number, since it uses less digits than its factorization.

1331232311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107516 (or 107513 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

Adding to 1331232311331 its reverse (1331132321331), we get a palindrome (2662364632662).

The spelling of 1331232311331 in words is "one trillion, three hundred thirty-one billion, two hundred thirty-two million, three hundred eleven thousand, three hundred thirty-one".