20111214024 has 96 divisors (see below), whose sum is σ = 59443113600. Its totient is φ = 6091885440.

The previous prime is 20111213999. The next prime is 20111214077. The reversal of 20111214024 is 42041211102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20111213988 and 20111214006.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 3785482 + ... + 3790790.

It is an arithmetic number, because the mean of its divisors is an integer number (619199100).

Almost surely, 2^20111214024 is an apocalyptic number.

20111214024 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20111214024 is an abundant number, since it is smaller than the sum of its proper divisors (39331899576).

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

20111214024 is a wasteful number, since it uses less digits than its factorization.

20111214024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10115 (or 10108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20111214024 its reverse (42041211102), we get a palindrome (62152425126).

The spelling of 20111214024 in words is "twenty billion, one hundred eleven million, two hundred fourteen thousand, twenty-four".