20211310020 has 72 divisors (see below), whose sum is σ = 62204087232. Its totient is φ = 4899709760.

The previous prime is 20211310003. The next prime is 20211310027. The reversal of 20211310020 is 2001311202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20211309978 and 20211310005.

It is not an unprimeable number, because it can be changed into a prime (20211310027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384704 + ... + 1399223.

It is an arithmetic number, because the mean of its divisors is an integer number (863945656).

Almost surely, 2^20211310020 is an apocalyptic number.

20211310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211310020 is an abundant number, since it is smaller than the sum of its proper divisors (41992777212).

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

20211310020 is a wasteful number, since it uses less digits than its factorization.

20211310020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783961 (or 2783948 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20211310020 its reverse (2001311202), we get a palindrome (22212621222).

The spelling of 20211310020 in words is "twenty billion, two hundred eleven million, three hundred ten thousand, twenty".