20123001012020 has 12 divisors (see below), whose sum is σ = 42258302125284. Its totient is φ = 8049200404800.

The previous prime is 20123001012019. The next prime is 20123001012061. The reversal of 20123001012020 is 2021010032102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12896990372644 + 7226010639376 = 3591238^2 + 2688124^2 .

It is a super-3 number, since 3×20123001012020³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123001011986 and 20123001012004.

It is a congruent number.

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, 503075025281 + ... + 503075025320.

It is an arithmetic number, because the mean of its divisors is an integer number (3521525177107).

Almost surely, 2^{20123001012020} is an apocalyptic number.

20123001012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123001012020 is an abundant number, since it is smaller than the sum of its proper divisors (22135301113264).

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

20123001012020 is a wasteful number, since it uses less digits than its factorization.

20123001012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006150050610 (or 1006150050608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20123001012020 its reverse (2021010032102), we get a palindrome (22144011044122).

The spelling of 20123001012020 in words is "twenty trillion, one hundred twenty-three billion, one million, twelve thousand, twenty".