9992111312 has 20 divisors (see below), whose sum is σ = 19831905156. Its totient is φ = 4874200320.

The previous prime is 9992111291. The next prime is 9992111341. The reversal of 9992111312 is 2131112999.

It can be written as a sum of positive squares in 2 ways, for example, as 617224336 + 9374886976 = 24844^2 + 96824^2 .

It is a super-2 number, since 2×9992111312² (a number of 21 digits) contains 22 as substring.

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, 7615283 + ... + 7616594.

Almost surely, 2^9992111312 is an apocalyptic number.

It is an amenable number.

9992111312 is a deficient number, since it is larger than the sum of its proper divisors (9839793844).

9992111312 is a wasteful number, since it uses less digits than its factorization.

9992111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15231926 (or 15231920 counting only the distinct ones).

The product of its digits is 8748, while the sum is 38.

The square root of 9992111312 is about 99960.5487780054. The cubic root of 9992111312 is about 2153.8680188932.

The spelling of 9992111312 in words is "nine billion, nine hundred ninety-two million, one hundred eleven thousand, three hundred twelve".