20211003020 has 24 divisors (see below), whose sum is σ = 45707961264. Its totient is φ = 7462524096.

The previous prime is 20211003017. The next prime is 20211003047. The reversal of 20211003020 is 2030011202.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20211002992 and 20211003010.

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, 38867054 + ... + 38867573.

It is an arithmetic number, because the mean of its divisors is an integer number (1904498386).

Almost surely, 2^20211003020 is an apocalyptic number.

20211003020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211003020 is an abundant number, since it is smaller than the sum of its proper divisors (25496958244).

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

20211003020 is a wasteful number, since it uses less digits than its factorization.

20211003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77734649 (or 77734647 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20211003020 its reverse (2030011202), we get a palindrome (22241014222).

The spelling of 20211003020 in words is "twenty billion, two hundred eleven million, three thousand, twenty".