2103504012 has 48 divisors (see below), whose sum is σ = 5504526720. Its totient is φ = 694611216.

The previous prime is 2103503999. The next prime is 2103504017. The reversal of 2103504012 is 2104053012.

2103504012 is a `hidden beast` number, since 210 + 3 + 50 + 401 + 2 = 666.

It is a super-2 number, since 2×2103504012² = 8849458257000192288, 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 (2103504017) 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, 79458 + ... + 102569.

It is an arithmetic number, because the mean of its divisors is an integer number (114677640).

Almost surely, 2^2103504012 is an apocalyptic number.

It is an amenable number.

2103504012 is an abundant number, since it is smaller than the sum of its proper divisors (3401022708).

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

2103504012 is a wasteful number, since it uses less digits than its factorization.

2103504012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182147 (or 182139 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2103504012 is about 45863.9729199292. The cubic root of 2103504012 is about 1281.2910175820.

Adding to 2103504012 its reverse (2104053012), we get a palindrome (4207557024).

The spelling of 2103504012 in words is "two billion, one hundred three million, five hundred four thousand, twelve".