1111412331 has 12 divisors (see below), whose sum is σ = 1623412440. Its totient is φ = 732615840.

The previous prime is 1111412329. The next prime is 1111412347. The reversal of 1111412331 is 1332141111.

It is a happy number.

It is not a de Polignac number, because 1111412331 - 2¹ = 1111412329 is a prime.

It is a super-2 number, since 2×1111412331² = 2470474738997707122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1111412311) 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 11 ways as a sum of consecutive naturals, for example, 692965 + ... + 694566.

It is an arithmetic number, because the mean of its divisors is an integer number (135284370).

Almost surely, 2^1111412331 is an apocalyptic number.

1111412331 is a deficient number, since it is larger than the sum of its proper divisors (512000109).

1111412331 is a wasteful number, since it uses less digits than its factorization.

1111412331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387626 (or 1387623 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1111412331 is about 33337.8513254829. The cubic root of 1111412331 is about 1035.8377562177.

Adding to 1111412331 its reverse (1332141111), we get a palindrome (2443553442).

The spelling of 1111412331 in words is "one billion, one hundred eleven million, four hundred twelve thousand, three hundred thirty-one".