11312012312 has 16 divisors (see below), whose sum is σ = 21217664400. Its totient is φ = 5653968480.

The previous prime is 11312012303. The next prime is 11312012419. The reversal of 11312012312 is 21321021311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230987 + ... + 275642.

It is an arithmetic number, because the mean of its divisors is an integer number (1326104025).

Almost surely, 2^11312012312 is an apocalyptic number.

It is an amenable number.

11312012312 is a deficient number, since it is larger than the sum of its proper divisors (9905652088).

11312012312 is a wasteful number, since it uses less digits than its factorization.

11312012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509426 (or 509422 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11312012312 its reverse (21321021311), we get a palindrome (32633033623).

The spelling of 11312012312 in words is "eleven billion, three hundred twelve million, twelve thousand, three hundred twelve".