20213331124 has 96 divisors (see below), whose sum is σ = 42336901376. Its totient is φ = 8264954880.

The previous prime is 20213331121. The next prime is 20213331133. The reversal of 20213331124 is 42113331202.

It is a junction number, because it is equal to n+sod(n) for n = 20213331095 and 20213331104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213331121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11529832 + ... + 11531584.

Almost surely, 2^20213331124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20213331124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168450688).

20213331124 is an abundant number, since it is smaller than the sum of its proper divisors (22123570252).

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

20213331124 is a wasteful number, since it uses less digits than its factorization.

20213331124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2025 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20213331124 its reverse (42113331202), we get a palindrome (62326662326).

The spelling of 20213331124 in words is "twenty billion, two hundred thirteen million, three hundred thirty-one thousand, one hundred twenty-four".