20100312113 has 16 divisors (see below), whose sum is σ = 23028655104. Its totient is φ = 17186245440.

The previous prime is 20100312109. The next prime is 20100312131. The reversal of 20100312113 is 31121300102.

It is not a de Polignac number, because 20100312113 - 2² = 20100312109 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20100312103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7756448 + ... + 7759038.

It is an arithmetic number, because the mean of its divisors is an integer number (1439290944).

Almost surely, 2^20100312113 is an apocalyptic number.

It is an amenable number.

20100312113 is a deficient number, since it is larger than the sum of its proper divisors (2928342991).

20100312113 is a wasteful number, since it uses less digits than its factorization.

20100312113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20100312113 its reverse (31121300102), we get a palindrome (51221612215).

The spelling of 20100312113 in words is "twenty billion, one hundred million, three hundred twelve thousand, one hundred thirteen".