20012023120 has 40 divisors (see below), whose sum is σ = 46840249800. Its totient is φ = 7951080960.

The previous prime is 20012023117. The next prime is 20012023121. The reversal of 20012023120 is 2132021002.

It can be written as a sum of positive squares in 4 ways, for example, as 53114944 + 19958908176 = 7288^2 + 141276^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 20012023120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012023121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 827511 + ... + 851350.

It is an arithmetic number, because the mean of its divisors is an integer number (1171006245).

Almost surely, 2^20012023120 is an apocalyptic number.

20012023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012023120 is an abundant number, since it is smaller than the sum of its proper divisors (26828226680).

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

20012023120 is a wasteful number, since it uses less digits than its factorization.

20012023120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679023 (or 1679017 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20012023120 its reverse (2132021002), we get a palindrome (22144044122).

The spelling of 20012023120 in words is "twenty billion, twelve million, twenty-three thousand, one hundred twenty".