20307020013 has 144 divisors (see below), whose sum is σ = 38206411776. Its totient is φ = 10141148160.

The previous prime is 20307019969. The next prime is 20307020039. The reversal of 20307020013 is 31002070302.

It is not a de Polignac number, because 20307020013 - 2¹⁰ = 20307018989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20307022013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 20490948 + ... + 20491938.

It is an arithmetic number, because the mean of its divisors is an integer number (265322304).

Almost surely, 2^20307020013 is an apocalyptic number.

It is an amenable number.

20307020013 is a deficient number, since it is larger than the sum of its proper divisors (17899391763).

20307020013 is a wasteful number, since it uses less digits than its factorization.

20307020013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

Adding to 20307020013 its reverse (31002070302), we get a palindrome (51309090315).

The spelling of 20307020013 in words is "twenty billion, three hundred seven million, twenty thousand, thirteen".