1021000000112 has 20 divisors (see below), whose sum is σ = 2094551471376. Its totient is φ = 480470588160.

The previous prime is 1021000000091. The next prime is 1021000000121. The reversal of 1021000000112 is 2110000001201.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1021000000112.

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, 1876837964 + ... + 1876838507.

Almost surely, 2^{1021000000112} is an apocalyptic number.

It is an amenable number.

1021000000112 is an abundant number, since it is smaller than the sum of its proper divisors (1073551471264).

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

1021000000112 is a wasteful number, since it uses less digits than its factorization.

1021000000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753676496 (or 3753676490 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1021000000112 its reverse (2110000001201), we get a palindrome (3131000001313).

The spelling of 1021000000112 in words is "one trillion, twenty-one billion, one hundred twelve", and thus it is an aban number.