20112113987 has 8 divisors (see below), whose sum is σ = 23070722400. Its totient is φ = 17174867904.

The previous prime is 20112113969. The next prime is 20112113999. The reversal of 20112113987 is 78931121102.

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

It is a cyclic number.

It is not a de Polignac number, because 20112113987 - 2³⁴ = 2932244803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112113927) 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, 5338562 + ... + 5342327.

It is an arithmetic number, because the mean of its divisors is an integer number (2883840300).

Almost surely, 2^20112113987 is an apocalyptic number.

20112113987 is a deficient number, since it is larger than the sum of its proper divisors (2958608413).

20112113987 is a wasteful number, since it uses less digits than its factorization.

20112113987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10681165.

The product of its (nonzero) digits is 6048, while the sum is 35.

The spelling of 20112113987 in words is "twenty billion, one hundred twelve million, one hundred thirteen thousand, nine hundred eighty-seven".