1115431343 has 8 divisors (see below), whose sum is σ = 1219163568. Its totient is φ = 1014260544.

The previous prime is 1115431337. The next prime is 1115431349. The reversal of 1115431343 is 3431345111.

It is an interprime number because it is at equal distance from previous prime (1115431337) and next prime (1115431349).

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 1115431343 - 2⁶ = 1115431279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115431349) 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, 639446 + ... + 641187.

It is an arithmetic number, because the mean of its divisors is an integer number (152395446).

Almost surely, 2^1115431343 is an apocalyptic number.

1115431343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1115431343 is a deficient number, since it is larger than the sum of its proper divisors (103732225).

1115431343 is a wasteful number, since it uses less digits than its factorization.

1115431343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280713.

The product of its digits is 2160, while the sum is 26.

The square root of 1115431343 is about 33398.0739414715. The cubic root of 1115431343 is about 1037.0848290564.

Adding to 1115431343 its reverse (3431345111), we get a palindrome (4546776454).

The spelling of 1115431343 in words is "one billion, one hundred fifteen million, four hundred thirty-one thousand, three hundred forty-three".