20100131120113 has 8 divisors (see below), whose sum is σ = 21942161861760. Its totient is φ = 18260558060880.

The previous prime is 20100131120059. The next prime is 20100131120161. The reversal of 20100131120113 is 31102113100102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100131120113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100131120183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614403498 + ... + 614436211.

It is an arithmetic number, because the mean of its divisors is an integer number (2742770232720).

Almost surely, 2^{20100131120113} is an apocalyptic number.

It is an amenable number.

20100131120113 is a deficient number, since it is larger than the sum of its proper divisors (1842030741647).

20100131120113 is a wasteful number, since it uses less digits than its factorization.

20100131120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228841207.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20100131120113 its reverse (31102113100102), we get a palindrome (51202244220215).

The spelling of 20100131120113 in words is "twenty trillion, one hundred billion, one hundred thirty-one million, one hundred twenty thousand, one hundred thirteen".