1331132331 has 8 divisors (see below), whose sum is σ = 1776606160. Its totient is φ = 886540032.

The previous prime is 1331132303. The next prime is 1331132333. The reversal of 1331132331 is 1332311331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331132331 - 2⁹ = 1331131819 is a prime.

It is a super-2 number, since 2×1331132331² = 3543826565266987122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331132298 and 1331132307.

It is not an unprimeable number, because it can be changed into a prime (1331132333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216850 + ... + 222903.

It is an arithmetic number, because the mean of its divisors is an integer number (222075770).

Almost surely, 2^1331132331 is an apocalyptic number.

1331132331 is a deficient number, since it is larger than the sum of its proper divisors (445473829).

1331132331 is a wasteful number, since it uses less digits than its factorization.

1331132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440765.

The product of its digits is 486, while the sum is 21.

The square root of 1331132331 is about 36484.6862532762. The cubic root of 1331132331 is about 1100.0364536129.

Adding to 1331132331 its reverse (1332311331), we get a palindrome (2663443662).

The spelling of 1331132331 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, three hundred thirty-one".