1331131223312 has 80 divisors (see below), whose sum is σ = 2821845729600. Its totient is φ = 603272325120.

The previous prime is 1331131223309. The next prime is 1331131223347. The reversal of 1331131223312 is 2133221311331.

It is a super-2 number, since 2×1331131223312² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199896239 + ... + 199902897.

It is an arithmetic number, because the mean of its divisors is an integer number (35273071620).

Almost surely, 2^{1331131223312} is an apocalyptic number.

It is an amenable number.

1331131223312 is an abundant number, since it is smaller than the sum of its proper divisors (1490714506288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331131223312 is a wasteful number, since it uses less digits than its factorization.

1331131223312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864 (or 9858 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

Adding to 1331131223312 its reverse (2133221311331), we get a palindrome (3464352534643).

The spelling of 1331131223312 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred twenty-three thousand, three hundred twelve".