20111114440 has 32 divisors (see below), whose sum is σ = 47217401280. Its totient is φ = 7694686912.

The previous prime is 20111114431. The next prime is 20111114449. The reversal of 20111114440 is 4441111102.

It is an interprime number because it is at equal distance from previous prime (20111114431) and next prime (20111114449).

It is not an unprimeable number, because it can be changed into a prime (20111114449) 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, 10929034 + ... + 10930873.

It is an arithmetic number, because the mean of its divisors is an integer number (1475543790).

Almost surely, 2^20111114440 is an apocalyptic number.

20111114440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111114440 is an abundant number, since it is smaller than the sum of its proper divisors (27106286840).

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

20111114440 is a wasteful number, since it uses less digits than its factorization.

20111114440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21859941 (or 21859937 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 20111114440 its reverse (4441111102), we get a palindrome (24552225542).

The spelling of 20111114440 in words is "twenty billion, one hundred eleven million, one hundred fourteen thousand, four hundred forty".