211142012312 has 64 divisors (see below), whose sum is σ = 493703942400. Its totient is φ = 82242253440.

The previous prime is 211142012303. The next prime is 211142012321. The reversal of 211142012312 is 213210241112.

It is an interprime number because it is at equal distance from previous prime (211142012303) and next prime (211142012321).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 2508218 + ... + 2591030.

It is an arithmetic number, because the mean of its divisors is an integer number (7714124100).

Almost surely, 2^211142012312 is an apocalyptic number.

211142012312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

211142012312 is an abundant number, since it is smaller than the sum of its proper divisors (282561930088).

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

211142012312 is a wasteful number, since it uses less digits than its factorization.

211142012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86976 (or 86972 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 211142012312 its reverse (213210241112), we get a palindrome (424352253424).

The spelling of 211142012312 in words is "two hundred eleven billion, one hundred forty-two million, twelve thousand, three hundred twelve".