20125011020 has 12 divisors (see below), whose sum is σ = 42262523184. Its totient is φ = 8050004400.

The previous prime is 20125011019. The next prime is 20125011037. The reversal of 20125011020 is 2011052102.

It is a junction number, because it is equal to n+sod(n) for n = 20125010986 and 20125011004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503125256 + ... + 503125295.

It is an arithmetic number, because the mean of its divisors is an integer number (3521876932).

Almost surely, 2^20125011020 is an apocalyptic number.

20125011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20125011020 is an abundant number, since it is smaller than the sum of its proper divisors (22137512164).

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

20125011020 is a wasteful number, since it uses less digits than its factorization.

20125011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006250560 (or 1006250558 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

Adding to 20125011020 its reverse (2011052102), we get a palindrome (22136063122).

The spelling of 20125011020 in words is "twenty billion, one hundred twenty-five million, eleven thousand, twenty".