11500212126 has 32 divisors (see below), whose sum is σ = 25001198208. Its totient is φ = 3505453920.

The previous prime is 11500212089. The next prime is 11500212127. The reversal of 11500212126 is 62121200511.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11500212127) 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, 680620 + ... + 697311.

It is an arithmetic number, because the mean of its divisors is an integer number (781287444).

Almost surely, 2^11500212126 is an apocalyptic number.

11500212126 is an abundant number, since it is smaller than the sum of its proper divisors (13500986082).

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

11500212126 is a wasteful number, since it uses less digits than its factorization.

11500212126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378056.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 11500212126 its reverse (62121200511), we get a palindrome (73621412637).

The spelling of 11500212126 in words is "eleven billion, five hundred million, two hundred twelve thousand, one hundred twenty-six".