1312101112 has 16 divisors (see below), whose sum is σ = 2811645360. Its totient is φ = 562329024.

The previous prime is 1312101073. The next prime is 1312101121. The reversal of 1312101112 is 2111012131.

It is a happy number.

It is a super-2 number, since 2×1312101112² = 3443218656223273088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312101092 and 1312101101.

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, 11715133 + ... + 11715244.

It is an arithmetic number, because the mean of its divisors is an integer number (175727835).

Almost surely, 2^1312101112 is an apocalyptic number.

It is an amenable number.

1312101112 is an abundant number, since it is smaller than the sum of its proper divisors (1499544248).

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

1312101112 is a wasteful number, since it uses less digits than its factorization.

1312101112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23430390 (or 23430386 counting only the distinct ones).

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

The square root of 1312101112 is about 36222.9362697173. The cubic root of 1312101112 is about 1094.7688570587.

Adding to 1312101112 its reverse (2111012131), we get a palindrome (3423113243).

The spelling of 1312101112 in words is "one billion, three hundred twelve million, one hundred one thousand, one hundred twelve".