20312200113 has 16 divisors (see below), whose sum is σ = 27155471616. Its totient is φ = 13505234960.

The previous prime is 20312200067. The next prime is 20312200157. The reversal of 20312200113 is 31100221302.

It is a cyclic number.

It is not a de Polignac number, because 20312200113 - 2¹² = 20312196017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20312200092 and 20312200101.

It is not an unprimeable number, because it can be changed into a prime (20312200163) 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 15 ways as a sum of consecutive naturals, for example, 2982370 + ... + 2989172.

It is an arithmetic number, because the mean of its divisors is an integer number (1697216976).

Almost surely, 2^20312200113 is an apocalyptic number.

It is an amenable number.

20312200113 is a deficient number, since it is larger than the sum of its proper divisors (6843271503).

20312200113 is a wasteful number, since it uses less digits than its factorization.

20312200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20312200113 its reverse (31100221302), we get a palindrome (51412421415).

The spelling of 20312200113 in words is "twenty billion, three hundred twelve million, two hundred thousand, one hundred thirteen".