20100001120 has 48 divisors (see below), whose sum is σ = 47921947920. Its totient is φ = 7966232064.

The previous prime is 20100001087. The next prime is 20100001121. The reversal of 20100001120 is 2110000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100001121) 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, 558822 + ... + 593701.

It is an arithmetic number, because the mean of its divisors is an integer number (998373915).

Almost surely, 2^20100001120 is an apocalyptic number.

20100001120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100001120 is an abundant number, since it is smaller than the sum of its proper divisors (27821946800).

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

20100001120 is a wasteful number, since it uses less digits than its factorization.

20100001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152647 (or 1152639 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20100001120 its reverse (2110000102), we get a palindrome (22210001222).

The spelling of 20100001120 in words is "twenty billion, one hundred million, one thousand, one hundred twenty".