1103041512 has 96 divisors (see below), whose sum is σ = 3062503080. Its totient is φ = 358525440.

The previous prime is 1103041453. The next prime is 1103041519. The reversal of 1103041512 is 2151403011.

1103041512 is a `hidden beast` number, since 110 + 3 + 0 + 41 + 512 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 558565956 + 544475556 = 23634^2 + 23334^2 .

It is a super-2 number, since 2×1103041512² = 2433401154390492288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1103041519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 689898 + ... + 691494.

Almost surely, 2^1103041512 is an apocalyptic number.

1103041512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103041512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531251540).

1103041512 is an abundant number, since it is smaller than the sum of its proper divisors (1959461568).

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

1103041512 is a wasteful number, since it uses less digits than its factorization.

1103041512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1836 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1103041512 is about 33212.0687702528. The cubic root of 1103041512 is about 1033.2306618304.

Adding to 1103041512 its reverse (2151403011), we get a palindrome (3254444523).

The spelling of 1103041512 in words is "one billion, one hundred three million, forty-one thousand, five hundred twelve".