20030320236 has 24 divisors (see below), whose sum is σ = 47877351984. Its totient is φ = 6513925120.

The previous prime is 20030320231. The next prime is 20030320237. The reversal of 20030320236 is 63202303002.

It is a super-2 number, since 2×20030320236² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20030320231) 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 7 ways as a sum of consecutive naturals, for example, 20355525 + ... + 20356508.

It is an arithmetic number, because the mean of its divisors is an integer number (1994889666).

Almost surely, 2^20030320236 is an apocalyptic number.

It is an amenable number.

20030320236 is an abundant number, since it is smaller than the sum of its proper divisors (27847031748).

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

20030320236 is a wasteful number, since it uses less digits than its factorization.

20030320236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40712081 (or 40712079 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20030320236 its reverse (63202303002), we get a palindrome (83232623238).

The spelling of 20030320236 in words is "twenty billion, thirty million, three hundred twenty thousand, two hundred thirty-six".