20113411312 has 20 divisors (see below), whose sum is σ = 40664071440. Its totient is φ = 9619457408.

The previous prime is 20113411291. The next prime is 20113411327. The reversal of 20113411312 is 21311431102.

It is a super-2 number, since 2×20113411312² (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 20113411312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27327637 + ... + 27328372.

It is an arithmetic number, because the mean of its divisors is an integer number (2033203572).

Almost surely, 2^20113411312 is an apocalyptic number.

It is an amenable number.

20113411312 is an abundant number, since it is smaller than the sum of its proper divisors (20550660128).

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

20113411312 is a wasteful number, since it uses less digits than its factorization.

20113411312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54656040 (or 54656034 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20113411312 its reverse (21311431102), we get a palindrome (41424842414).

The spelling of 20113411312 in words is "twenty billion, one hundred thirteen million, four hundred eleven thousand, three hundred twelve".