20011120112 has 40 divisors (see below), whose sum is σ = 41582226960. Its totient is φ = 9300096000.

The previous prime is 20011120091. The next prime is 20011120159. The reversal of 20011120112 is 21102111002.

It is a junction number, because it is equal to n+sod(n) for n = 20011120093 and 20011120102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604889 + ... + 637112.

It is an arithmetic number, because the mean of its divisors is an integer number (1039555674).

Almost surely, 2^20011120112 is an apocalyptic number.

It is an amenable number.

20011120112 is an abundant number, since it is smaller than the sum of its proper divisors (21571106848).

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

20011120112 is a wasteful number, since it uses less digits than its factorization.

20011120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242081 (or 1242075 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20011120112 its reverse (21102111002), we get a palindrome (41113231114).

The spelling of 20011120112 in words is "twenty billion, eleven million, one hundred twenty thousand, one hundred twelve".