20123301020 has 24 divisors (see below), whose sum is σ = 43289639568. Its totient is φ = 7852995200.

The previous prime is 20123301019. The next prime is 20123301049. The reversal of 20123301020 is 2010332102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20123300986 and 20123301004.

It is a congruent number.

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, 12269486 + ... + 12271125.

It is an arithmetic number, because the mean of its divisors is an integer number (1803734982).

Almost surely, 2^20123301020 is an apocalyptic number.

20123301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123301020 is an abundant number, since it is smaller than the sum of its proper divisors (23166338548).

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

20123301020 is a wasteful number, since it uses less digits than its factorization.

20123301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24540661 (or 24540659 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20123301020 its reverse (2010332102), we get a palindrome (22133633122).

The spelling of 20123301020 in words is "twenty billion, one hundred twenty-three million, three hundred one thousand, twenty".