20303243235 has 24 divisors (see below), whose sum is σ = 38391588144. Its totient is φ = 9843996480.

The previous prime is 20303243209. The next prime is 20303243249. The reversal of 20303243235 is 53234230302.

It is not a de Polignac number, because 20303243235 - 2⁵ = 20303243203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20303243199 and 20303243208.

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, 20507832 + ... + 20508821.

It is an arithmetic number, because the mean of its divisors is an integer number (1599649506).

Almost surely, 2^20303243235 is an apocalyptic number.

20303243235 is a deficient number, since it is larger than the sum of its proper divisors (18088344909).

20303243235 is a wasteful number, since it uses less digits than its factorization.

20303243235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41016675 (or 41016672 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 27.

Adding to 20303243235 its reverse (53234230302), we get a palindrome (73537473537).

The spelling of 20303243235 in words is "twenty billion, three hundred three million, two hundred forty-three thousand, two hundred thirty-five".