20611352112 has 80 divisors (see below), whose sum is σ = 59835003648. Its totient is φ = 6066213120.

The previous prime is 20611352081. The next prime is 20611352123. The reversal of 20611352112 is 21125311602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703714 + ... + 732417.

Almost surely, 2^20611352112 is an apocalyptic number.

It is an amenable number.

20611352112 is an abundant number, since it is smaller than the sum of its proper divisors (39223651536).

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

20611352112 is a wasteful number, since it uses less digits than its factorization.

20611352112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436178 (or 1436172 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 20611352112 its reverse (21125311602), we get a palindrome (41736663714).

The spelling of 20611352112 in words is "twenty billion, six hundred eleven million, three hundred fifty-two thousand, one hundred twelve".