20523463112 has 32 divisors (see below), whose sum is σ = 40781889720. Its totient is φ = 9649382400.

The previous prime is 20523463099. The next prime is 20523463117. The reversal of 20523463112 is 21136432502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8562541156 + 11960921956 = 92534^2 + 109366^2 .

It is not an unprimeable number, because it can be changed into a prime (20523463117) 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, 84362 + ... + 219462.

Almost surely, 2^20523463112 is an apocalyptic number.

It is an amenable number.

20523463112 is a deficient number, since it is larger than the sum of its proper divisors (20258426608).

20523463112 is a wasteful number, since it uses less digits than its factorization.

20523463112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136241 (or 136237 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20523463112 its reverse (21136432502), we get a palindrome (41659895614).

The spelling of 20523463112 in words is "twenty billion, five hundred twenty-three million, four hundred sixty-three thousand, one hundred twelve".