1331314421231 has 4 divisors (see below), whose sum is σ = 1332451326264. Its totient is φ = 1330177516200.

The previous prime is 1331314421141. The next prime is 1331314421249. The reversal of 1331314421231 is 1321244131331.

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 1331314421231 - 2¹⁰ = 1331314420207 is a prime.

It is a super-2 number, since 2×1331314421231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331314421194 and 1331314421203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331314421251) 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, 568450760 + ... + 568453101.

It is an arithmetic number, because the mean of its divisors is an integer number (333112831566).

Almost surely, 2^{1331314421231} is an apocalyptic number.

1331314421231 is a deficient number, since it is larger than the sum of its proper divisors (1136905033).

1331314421231 is a wasteful number, since it uses less digits than its factorization.

1331314421231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136905032.

The product of its digits is 5184, while the sum is 29.

Adding to 1331314421231 its reverse (1321244131331), we get a palindrome (2652558552562).

The spelling of 1331314421231 in words is "one trillion, three hundred thirty-one billion, three hundred fourteen million, four hundred twenty-one thousand, two hundred thirty-one".