20111014320 has 80 divisors (see below), whose sum is σ = 62357770752. Its totient is φ = 5361765120.

The previous prime is 20111014309. The next prime is 20111014361. The reversal of 20111014320 is 2341011102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20111014320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136825 + ... + 2146215.

Almost surely, 2^20111014320 is an apocalyptic number.

20111014320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111014320 is an abundant number, since it is smaller than the sum of its proper divisors (42246756432).

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

20111014320 is a wasteful number, since it uses less digits than its factorization.

20111014320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18330 (or 18324 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20111014320 its reverse (2341011102), we get a palindrome (22452025422).

The spelling of 20111014320 in words is "twenty billion, one hundred eleven million, fourteen thousand, three hundred twenty".