1103211012 has 48 divisors (see below), whose sum is σ = 2696916992. Its totient is φ = 350555040.

The previous prime is 1103211001. The next prime is 1103211019. The reversal of 1103211012 is 2101123011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1103211019) 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, 2793 + ... + 47055.

Almost surely, 2^1103211012 is an apocalyptic number.

1103211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103211012 is an abundant number, since it is smaller than the sum of its proper divisors (1593705980).

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

1103211012 is a wasteful number, since it uses less digits than its factorization.

1103211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44368 (or 44366 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1103211012 is about 33214.6204554561. The cubic root of 1103211012 is about 1033.2835832679.

Adding to 1103211012 its reverse (2101123011), we get a palindrome (3204334023).

The spelling of 1103211012 in words is "one billion, one hundred three million, two hundred eleven thousand, twelve".