20053106446831 has 4 divisors (see below), whose sum is σ = 20519457759592. Its totient is φ = 19586755134072.

The previous prime is 20053106446801. The next prime is 20053106446837. The reversal of 20053106446831 is 13864460135002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20053106446831 - 2⁹ = 20053106446319 is a prime.

It is a super-2 number, since 2×20053106446831² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 466351312717 = 20053106446831 / (2 + 0 + 0 + 5 + 3 + 1 + 0 + 6 + 4 + 4 + 6 + 8 + 3 + 1).

It is the 4478070-th Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20053106446837) by changing a digit.

It is a nontrivial repunit in base 4478069.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233175656316 + ... + 233175656401.

It is an arithmetic number, because the mean of its divisors is an integer number (5129864439898).

Almost surely, 2^{20053106446831} is an apocalyptic number.

20053106446831 is a deficient number, since it is larger than the sum of its proper divisors (466351312761).

20053106446831 is an equidigital number, since it uses as much as digits as its factorization.

20053106446831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466351312760.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 20053106446831 in words is "twenty trillion, fifty-three billion, one hundred six million, four hundred forty-six thousand, eight hundred thirty-one".