1331332442231 has 4 divisors (see below), whose sum is σ = 1452362664264. Its totient is φ = 1210302220200.

The previous prime is 1331332442213. The next prime is 1331332442239. The reversal of 1331332442231 is 1322442331331.

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 1331332442231 - 2²² = 1331328247927 is a prime.

It is a super-2 number, since 2×1331332442231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331332442239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60515111000 + ... + 60515111021.

It is an arithmetic number, because the mean of its divisors is an integer number (363090666066).

Almost surely, 2^{1331332442231} is an apocalyptic number.

1331332442231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1331332442231 is a deficient number, since it is larger than the sum of its proper divisors (121030222033).

1331332442231 is a wasteful number, since it uses less digits than its factorization.

1331332442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121030222032.

The product of its digits is 31104, while the sum is 32.

Adding to 1331332442231 its reverse (1322442331331), we get a palindrome (2653774773562).

The spelling of 1331332442231 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-two million, four hundred forty-two thousand, two hundred thirty-one".