20202123020 has 48 divisors (see below), whose sum is σ = 42873038208. Its totient is φ = 7995513600.

The previous prime is 20202122981. The next prime is 20202123041. The reversal of 20202123020 is 2032120202.

It is a junction number, because it is equal to n+sod(n) for n = 20202122986 and 20202123004.

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 15 ways as a sum of consecutive naturals, for example, 4617554 + ... + 4621926.

It is an arithmetic number, because the mean of its divisors is an integer number (893188296).

Almost surely, 2^20202123020 is an apocalyptic number.

20202123020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202123020 is an abundant number, since it is smaller than the sum of its proper divisors (22670915188).

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

20202123020 is a wasteful number, since it uses less digits than its factorization.

20202123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770 (or 6768 counting only the distinct ones).

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

Adding to 20202123020 its reverse (2032120202), we get a palindrome (22234243222).

The spelling of 20202123020 in words is "twenty billion, two hundred two million, one hundred twenty-three thousand, twenty".