211231130008 has 8 divisors (see below), whose sum is σ = 396058368780. Its totient is φ = 105615565000.

The previous prime is 211231130003. The next prime is 211231130087. The reversal of 211231130008 is 800031132112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211231130003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13201945618 + ... + 13201945633.

Almost surely, 2^211231130008 is an apocalyptic number.

It is an amenable number.

211231130008 is a deficient number, since it is larger than the sum of its proper divisors (184827238772).

211231130008 is a wasteful number, since it uses less digits than its factorization.

211231130008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26403891257 (or 26403891253 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 211231130008 in words is "two hundred eleven billion, two hundred thirty-one million, one hundred thirty thousand, eight".