211100113232331 has 4 divisors (see below), whose sum is σ = 281466817643112. Its totient is φ = 140733408821552.

The previous prime is 211100113232321. The next prime is 211100113232377. The reversal of 211100113232331 is 133232311001112.

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 211100113232331 - 2²³ = 211100104843723 is a prime.

It is a super-2 number, since 2×211100113232331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211100113232321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35183352205386 + ... + 35183352205391.

It is an arithmetic number, because the mean of its divisors is an integer number (70366704410778).

Almost surely, 2^{211100113232331} is an apocalyptic number.

211100113232331 is a deficient number, since it is larger than the sum of its proper divisors (70366704410781).

211100113232331 is an equidigital number, since it uses as much as digits as its factorization.

211100113232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70366704410780.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 211100113232331 its reverse (133232311001112), we get a palindrome (344332424233443).

The spelling of 211100113232331 in words is "two hundred eleven trillion, one hundred billion, one hundred thirteen million, two hundred thirty-two thousand, three hundred thirty-one".