20312100023133 has 16 divisors (see below), whose sum is σ = 28017653748480. Its totient is φ = 13074005292096.

The previous prime is 20312100023003. The next prime is 20312100023153. The reversal of 20312100023133 is 33132000121302.

It is not a de Polignac number, because 20312100023133 - 2²¹ = 20312097925981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312100023153) 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, 1464810 + ... + 6539867.

It is an arithmetic number, because the mean of its divisors is an integer number (1751103359280).

Almost surely, 2^{20312100023133} is an apocalyptic number.

It is an amenable number.

20312100023133 is a deficient number, since it is larger than the sum of its proper divisors (7705553725347).

20312100023133 is a wasteful number, since it uses less digits than its factorization.

20312100023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033876.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20312100023133 its reverse (33132000121302), we get a palindrome (53444100144435).

The spelling of 20312100023133 in words is "twenty trillion, three hundred twelve billion, one hundred million, twenty-three thousand, one hundred thirty-three".