20001013112 has 8 divisors (see below), whose sum is σ = 37501899600. Its totient is φ = 10000506552.

The previous prime is 20001013091. The next prime is 20001013117. The reversal of 20001013112 is 21131010002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20001013093 and 20001013102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001013117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250063312 + ... + 1250063327.

It is an arithmetic number, because the mean of its divisors is an integer number (4687737450).

Almost surely, 2^20001013112 is an apocalyptic number.

It is an amenable number.

20001013112 is a deficient number, since it is larger than the sum of its proper divisors (17500886488).

20001013112 is a wasteful number, since it uses less digits than its factorization.

20001013112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500126645 (or 2500126641 counting only the distinct ones).

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

Adding to 20001013112 its reverse (21131010002), we get a palindrome (41132023114).

The spelling of 20001013112 in words is "twenty billion, one million, thirteen thousand, one hundred twelve".