20112443115 has 8 divisors (see below), whose sum is σ = 32179909008. Its totient is φ = 10726636320.

The previous prime is 20112443111. The next prime is 20112443171. The reversal of 20112443115 is 51134421102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20112443115 - 2² = 20112443111 is a prime.

It is a super-2 number, since 2×20112443115² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20112443111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670414756 + ... + 670414785.

It is an arithmetic number, because the mean of its divisors is an integer number (4022488626).

Almost surely, 2^20112443115 is an apocalyptic number.

20112443115 is a deficient number, since it is larger than the sum of its proper divisors (12067465893).

20112443115 is a wasteful number, since it uses less digits than its factorization.

20112443115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340829549.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 20112443115 its reverse (51134421102), we get a palindrome (71246864217).

The spelling of 20112443115 in words is "twenty billion, one hundred twelve million, four hundred forty-three thousand, one hundred fifteen".