20202310040 has 96 divisors (see below), whose sum is σ = 50324274000. Its totient is φ = 7293200640.

The previous prime is 20202309943. The next prime is 20202310057. The reversal of 20202310040 is 4001320202.

It is a junction number, because it is equal to n+sod(n) for n = 20202309997 and 20202310024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 657746 + ... + 687774.

Almost surely, 2^20202310040 is an apocalyptic number.

20202310040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202310040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25162137000).

20202310040 is an abundant number, since it is smaller than the sum of its proper divisors (30121963960).

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

20202310040 is a wasteful number, since it uses less digits than its factorization.

20202310040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30201 (or 30186 counting only the distinct ones).

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

Adding to 20202310040 its reverse (4001320202), we get a palindrome (24203630242).

The spelling of 20202310040 in words is "twenty billion, two hundred two million, three hundred ten thousand, forty".