20020111024 has 20 divisors (see below), whose sum is σ = 40126516560. Its totient is φ = 9664880960.

The previous prime is 20020111019. The next prime is 20020111049. The reversal of 20020111024 is 42011102002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20020110995 and 20020111013.

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, 21572932 + ... + 21573859.

It is an arithmetic number, because the mean of its divisors is an integer number (2006325828).

Almost surely, 2^20020111024 is an apocalyptic number.

It is an amenable number.

20020111024 is an abundant number, since it is smaller than the sum of its proper divisors (20106405536).

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

20020111024 is a wasteful number, since it uses less digits than its factorization.

20020111024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43146828 (or 43146822 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20020111024 its reverse (42011102002), we get a palindrome (62031213026).

It can be divided in two parts, 20020 and 111024, that added together give a square (131044 = 362²).

The spelling of 20020111024 in words is "twenty billion, twenty million, one hundred eleven thousand, twenty-four".