11312405212 has 24 divisors (see below), whose sum is σ = 21044978640. Its totient is φ = 5305449600.

The previous prime is 11312405189. The next prime is 11312405227. The reversal of 11312405212 is 21250421311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729193 + ... + 744544.

It is an arithmetic number, because the mean of its divisors is an integer number (876874110).

Almost surely, 2^11312405212 is an apocalyptic number.

It is an amenable number.

11312405212 is a deficient number, since it is larger than the sum of its proper divisors (9732573428).

11312405212 is a wasteful number, since it uses less digits than its factorization.

11312405212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473861 (or 1473859 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 11312405212 its reverse (21250421311), we get a palindrome (32562826523).

The spelling of 11312405212 in words is "eleven billion, three hundred twelve million, four hundred five thousand, two hundred twelve".