20020011111940 has 24 divisors (see below), whose sum is σ = 48048026668992. Its totient is φ = 6864003809760.

The previous prime is 20020011111929. The next prime is 20020011111941. The reversal of 20020011111940 is 4911111002002.

It is not an unprimeable number, because it can be changed into a prime (20020011111941) 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, 71500039546 + ... + 71500039825.

It is an arithmetic number, because the mean of its divisors is an integer number (2002001111208).

Almost surely, 2^{20020011111940} is an apocalyptic number.

20020011111940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020011111940 is an abundant number, since it is smaller than the sum of its proper divisors (28028015557052).

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

20020011111940 is a wasteful number, since it uses less digits than its factorization.

20020011111940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143000079387 (or 143000079385 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 20020011111940 its reverse (4911111002002), we get a palindrome (24931122113942).

The spelling of 20020011111940 in words is "twenty trillion, twenty billion, eleven million, one hundred eleven thousand, nine hundred forty".