1011312112 has 20 divisors (see below), whose sum is σ = 1960287976. Its totient is φ = 505431360.

The previous prime is 1011312079. The next prime is 1011312119. The reversal of 1011312112 is 2112131101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1011312092 and 1011312101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011312119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26662 + ... + 52282.

Almost surely, 2^1011312112 is an apocalyptic number.

It is an amenable number.

1011312112 is a deficient number, since it is larger than the sum of its proper divisors (948975864).

1011312112 is a wasteful number, since it uses less digits than its factorization.

1011312112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28096 (or 28090 counting only the distinct ones).

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

The square root of 1011312112 is about 31801.1338162651. The cubic root of 1011312112 is about 1003.7565744775.

Adding to 1011312112 its reverse (2112131101), we get a palindrome (3123443213).

The spelling of 1011312112 in words is "one billion, eleven million, three hundred twelve thousand, one hundred twelve".