20131312100033 has 16 divisors (see below), whose sum is σ = 21209019000000. Its totient is φ = 19055424068352.

The previous prime is 20131312100023. The next prime is 20131312100041. The reversal of 20131312100033 is 33000121313102.

It is a cyclic number.

It is not a de Polignac number, because 20131312100033 - 2⁸ = 20131312099777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20131312099978 and 20131312100014.

It is not an unprimeable number, because it can be changed into a prime (20131312100023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397928966 + ... + 397979552.

It is an arithmetic number, because the mean of its divisors is an integer number (1325563687500).

Almost surely, 2^{20131312100033} is an apocalyptic number.

It is an amenable number.

20131312100033 is a deficient number, since it is larger than the sum of its proper divisors (1077706899967).

20131312100033 is a wasteful number, since it uses less digits than its factorization.

20131312100033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68144.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20131312100033 its reverse (33000121313102), we get a palindrome (53131433413135).

The spelling of 20131312100033 in words is "twenty trillion, one hundred thirty-one billion, three hundred twelve million, one hundred thousand, thirty-three".