211431010112 has 28 divisors (see below), whose sum is σ = 479495327520. Its totient is φ = 90613289856.

The previous prime is 211431010079. The next prime is 211431010127. The reversal of 211431010112 is 211010134112.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235971662 + ... + 235972557.

Almost surely, 2^211431010112 is an apocalyptic number.

It is an amenable number.

211431010112 is an abundant number, since it is smaller than the sum of its proper divisors (268064317408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211431010112 is an equidigital number, since it uses as much as digits as its factorization.

211431010112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471944238 (or 471944228 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211431010112 its reverse (211010134112), we get a palindrome (422441144224).

The spelling of 211431010112 in words is "two hundred eleven billion, four hundred thirty-one million, ten thousand, one hundred twelve".