1103133612 has 48 divisors (see below), whose sum is σ = 2943906560. Its totient is φ = 314943552.

The previous prime is 1103133601. The next prime is 1103133617. The reversal of 1103133612 is 2163313011.

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

It is not an unprimeable number, because it can be changed into a prime (1103133617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128478 + ... + 136794.

Almost surely, 2^1103133612 is an apocalyptic number.

1103133612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103133612 is an abundant number, since it is smaller than the sum of its proper divisors (1840772948).

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

1103133612 is a wasteful number, since it uses less digits than its factorization.

1103133612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9910 (or 9908 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1103133612 is about 33213.4552854713. The cubic root of 1103133612 is about 1033.2594180451.

Adding to 1103133612 its reverse (2163313011), we get a palindrome (3266446623).

The spelling of 1103133612 in words is "one billion, one hundred three million, one hundred thirty-three thousand, six hundred twelve".