211131100133013 has 4 divisors (see below), whose sum is σ = 281508133510688. Its totient is φ = 140754066755340.

The previous prime is 211131100132999. The next prime is 211131100133033. The reversal of 211131100133013 is 310331001131112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211131100133013 - 2¹³ = 211131100124821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211131100133033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35188516688833 + ... + 35188516688838.

It is an arithmetic number, because the mean of its divisors is an integer number (70377033377672).

Almost surely, 2^{211131100133013} is an apocalyptic number.

It is an amenable number.

211131100133013 is a deficient number, since it is larger than the sum of its proper divisors (70377033377675).

211131100133013 is an equidigital number, since it uses as much as digits as its factorization.

211131100133013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70377033377674.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 211131100133013 its reverse (310331001131112), we get a palindrome (521462101264125).

The spelling of 211131100133013 in words is "two hundred eleven trillion, one hundred thirty-one billion, one hundred million, one hundred thirty-three thousand, thirteen".