11900213812 has 12 divisors (see below), whose sum is σ = 20826696996. Its totient is φ = 5949728960.

The previous prime is 11900213803. The next prime is 11900213821. The reversal of 11900213812 is 21831200911.

11900213812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11900213803) and next prime (11900213821).

It can be written as a sum of positive squares in 2 ways, for example, as 1852958116 + 10047255696 = 43046^2 + 100236^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16489 + ... + 155152.

It is an arithmetic number, because the mean of its divisors is an integer number (1735558083).

Almost surely, 2^11900213812 is an apocalyptic number.

It is an amenable number.

11900213812 is a deficient number, since it is larger than the sum of its proper divisors (8926483184).

11900213812 is a wasteful number, since it uses less digits than its factorization.

11900213812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188978 (or 188976 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 11900213812 in words is "eleven billion, nine hundred million, two hundred thirteen thousand, eight hundred twelve".