1011112312 has 16 divisors (see below), whose sum is σ = 2166669360. Its totient is φ = 433333824.

The previous prime is 1011112301. The next prime is 1011112321. The reversal of 1011112312 is 2132111101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011112292 and 1011112301.

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, 9027733 + ... + 9027844.

It is an arithmetic number, because the mean of its divisors is an integer number (135416835).

Almost surely, 2^1011112312 is an apocalyptic number.

It is an amenable number.

1011112312 is an abundant number, since it is smaller than the sum of its proper divisors (1155557048).

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

1011112312 is a wasteful number, since it uses less digits than its factorization.

1011112312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18055590 (or 18055586 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1011112312 is about 31797.9922636634. The cubic root of 1011112312 is about 1003.6904676940.

Adding to 1011112312 its reverse (2132111101), we get a palindrome (3143223413).

The spelling of 1011112312 in words is "one billion, eleven million, one hundred twelve thousand, three hundred twelve".