1143113412 has 48 divisors (see below), whose sum is σ = 3057989760. Its totient is φ = 325565952.

The previous prime is 1143113401. The next prime is 1143113449. The reversal of 1143113412 is 2143113411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5164 + ... + 48092.

It is an arithmetic number, because the mean of its divisors is an integer number (63708120).

Almost surely, 2^1143113412 is an apocalyptic number.

1143113412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143113412 is an abundant number, since it is smaller than the sum of its proper divisors (1914876348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143113412 is a wasteful number, since it uses less digits than its factorization.

1143113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43260 (or 43258 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 1143113412 is about 33809.9602484238. The cubic root of 1143113412 is about 1045.5940585705.

Adding to 1143113412 its reverse (2143113411), we get a palindrome (3286226823).

Subtracting 1143113412 from its reverse (2143113411), we obtain a palindrome (999999999).

The spelling of 1143113412 in words is "one billion, one hundred forty-three million, one hundred thirteen thousand, four hundred twelve".