211232100131023 has 4 divisors (see below), whose sum is σ = 211232208790360. Its totient is φ = 211231991471688.

The previous prime is 211232100130999. The next prime is 211232100131033. The reversal of 211232100131023 is 320131001232112.

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 211232100131023 - 2⁵ = 211232100130991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211232100130985 and 211232100131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232100131033) 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, 51359568 + ... + 55319701.

It is an arithmetic number, because the mean of its divisors is an integer number (52808052197590).

Almost surely, 2^{211232100131023} is an apocalyptic number.

211232100131023 is a deficient number, since it is larger than the sum of its proper divisors (108659337).

211232100131023 is a wasteful number, since it uses less digits than its factorization.

211232100131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108659336.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 211232100131023 its reverse (320131001232112), we get a palindrome (531363101363135).

The spelling of 211232100131023 in words is "two hundred eleven trillion, two hundred thirty-two billion, one hundred million, one hundred thirty-one thousand, twenty-three".