1103143412 has 48 divisors (see below), whose sum is σ = 2305134720. Its totient is φ = 451920000.

The previous prime is 1103143399. The next prime is 1103143429. The reversal of 1103143412 is 2143413011.

It is a congruent number.

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, 75287 + ... + 88737.

It is an arithmetic number, because the mean of its divisors is an integer number (48023640).

Almost surely, 2^1103143412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103143412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152567360).

1103143412 is an abundant number, since it is smaller than the sum of its proper divisors (1201991308).

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

1103143412 is a wasteful number, since it uses less digits than its factorization.

1103143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13592 (or 13590 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1103143412 is about 33213.6028157139. The cubic root of 1103143412 is about 1033.2624777869.

Adding to 1103143412 its reverse (2143413011), we get a palindrome (3246556423).

The spelling of 1103143412 in words is "one billion, one hundred three million, one hundred forty-three thousand, four hundred twelve".