20011423112 has 32 divisors (see below), whose sum is σ = 39736276920. Its totient is φ = 9415311360.

The previous prime is 20011423109. The next prime is 20011423141. The reversal of 20011423112 is 21132411002.

It can be written as a sum of positive squares in 4 ways, for example, as 13113456196 + 6897966916 = 114514^2 + 83054^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905312 + ... + 927152.

Almost surely, 2^20011423112 is an apocalyptic number.

It is an amenable number.

20011423112 is a deficient number, since it is larger than the sum of its proper divisors (19724853808).

20011423112 is a wasteful number, since it uses less digits than its factorization.

20011423112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28601 (or 28597 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20011423112 its reverse (21132411002), we get a palindrome (41143834114).

The spelling of 20011423112 in words is "twenty billion, eleven million, four hundred twenty-three thousand, one hundred twelve".