21130000112 has 40 divisors (see below), whose sum is σ = 44746625616. Its totient is φ = 9606744576.

The previous prime is 21130000103. The next prime is 21130000121. The reversal of 21130000112 is 21100003112.

It is an interprime number because it is at equal distance from previous prime (21130000103) and next prime (21130000121).

It is a junction number, because it is equal to n+sod(n) for n = 21130000093 and 21130000102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 744173 + ... + 772044.

Almost surely, 2^21130000112 is an apocalyptic number.

It is an amenable number.

21130000112 is an abundant number, since it is smaller than the sum of its proper divisors (23616625504).

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

21130000112 is a wasteful number, since it uses less digits than its factorization.

21130000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516305 (or 1516299 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21130000112 its reverse (21100003112), we get a palindrome (42230003224).

The spelling of 21130000112 in words is "twenty-one billion, one hundred thirty million, one hundred twelve", and thus it is an aban number.