20402301020 has 12 divisors (see below), whose sum is σ = 42844832184. Its totient is φ = 8160920400.

The previous prime is 20402301019. The next prime is 20402301043. The reversal of 20402301020 is 2010320402.

It is a junction number, because it is equal to n+sod(n) for n = 20402300986 and 20402301004.

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, 510057506 + ... + 510057545.

It is an arithmetic number, because the mean of its divisors is an integer number (3570402682).

Almost surely, 2^20402301020 is an apocalyptic number.

20402301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20402301020 is an abundant number, since it is smaller than the sum of its proper divisors (22442531164).

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

20402301020 is a wasteful number, since it uses less digits than its factorization.

20402301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020115060 (or 1020115058 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20402301020 its reverse (2010320402), we get a palindrome (22412621422).

The spelling of 20402301020 in words is "twenty billion, four hundred two million, three hundred one thousand, twenty".