1331112331 has 8 divisors (see below), whose sum is σ = 1375333344. Its totient is φ = 1287599040.

The previous prime is 1331112323. The next prime is 1331112347. The reversal of 1331112331 is 1332111331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331112331 - 2³ = 1331112323 is a prime.

It is a super-2 number, since 2×1331112331² = 3543720075480507122, 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 = 1331112299 and 1331112308.

It is not an unprimeable number, because it can be changed into a prime (1331112371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173106 + ... + 180631.

It is an arithmetic number, because the mean of its divisors is an integer number (171916668).

Almost surely, 2^1331112331 is an apocalyptic number.

1331112331 is a deficient number, since it is larger than the sum of its proper divisors (44221013).

1331112331 is an equidigital number, since it uses as much as digits as its factorization.

1331112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353861.

The product of its digits is 162, while the sum is 19.

The square root of 1331112331 is about 36484.4121646492. The cubic root of 1331112331 is about 1100.0309443086.

Adding to 1331112331 its reverse (1332111331), we get a palindrome (2663223662).

The spelling of 1331112331 in words is "one billion, three hundred thirty-one million, one hundred twelve thousand, three hundred thirty-one".