20120000111020 has 24 divisors (see below), whose sum is σ = 42317304742944. Its totient is φ = 8035561090176.

The previous prime is 20120000110961. The next prime is 20120000111063. The reversal of 20120000111020 is 2011100002102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20120000110988 and 20120000111006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777421377 + ... + 777447256.

It is an arithmetic number, because the mean of its divisors is an integer number (1763221030956).

Almost surely, 2^{20120000111020} is an apocalyptic number.

20120000111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120000111020 is an abundant number, since it is smaller than the sum of its proper divisors (22197304631924).

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

20120000111020 is a wasteful number, since it uses less digits than its factorization.

20120000111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554869289 (or 1554869287 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20120000111020 its reverse (2011100002102), we get a palindrome (22131100113122).

The spelling of 20120000111020 in words is "twenty trillion, one hundred twenty billion, one hundred eleven thousand, twenty".