20041431112 has 8 divisors (see below), whose sum is σ = 37577683350. Its totient is φ = 10020715552.

The previous prime is 20041431083. The next prime is 20041431119. The reversal of 20041431112 is 21113414002.

It can be written as a sum of positive squares in only one way, i.e., 17393916996 + 2647514116 = 131886^2 + 51454^2 .

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

It is a super-2 number, since 2×20041431112² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20041431112.

It is not an unprimeable number, because it can be changed into a prime (20041431119) 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, 1252589437 + ... + 1252589452.

Almost surely, 2^20041431112 is an apocalyptic number.

It is an amenable number.

20041431112 is a deficient number, since it is larger than the sum of its proper divisors (17536252238).

20041431112 is a wasteful number, since it uses less digits than its factorization.

20041431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505178895 (or 2505178891 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20041431112 its reverse (21113414002), we get a palindrome (41154845114).

The spelling of 20041431112 in words is "twenty billion, forty-one million, four hundred thirty-one thousand, one hundred twelve".