101312121112 has 32 divisors (see below), whose sum is σ = 201362382000. Its totient is φ = 47622242304.

The previous prime is 101312121107. The next prime is 101312121133. The reversal of 101312121112 is 211121213101.

It is a happy number.

It is a super-2 number, since 2×101312121112² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301737 + ... + 541912.

Almost surely, 2^101312121112 is an apocalyptic number.

It is an amenable number.

101312121112 is a deficient number, since it is larger than the sum of its proper divisors (100050260888).

101312121112 is a wasteful number, since it uses less digits than its factorization.

101312121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844555 (or 844551 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101312121112 its reverse (211121213101), we get a palindrome (312433334213).

It can be divided in two parts, 101 and 312121112, that added together give a palindrome (312121213).

The spelling of 101312121112 in words is "one hundred one billion, three hundred twelve million, one hundred twenty-one thousand, one hundred twelve".