211131132140 has 24 divisors (see below), whose sum is σ = 448717253040. Its totient is φ = 83434952768.

The previous prime is 211131132127. The next prime is 211131132167. The reversal of 211131132140 is 41231131112.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 63592055 + ... + 63595374.

It is an arithmetic number, because the mean of its divisors is an integer number (18696552210).

Almost surely, 2^211131132140 is an apocalyptic number.

211131132140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211131132140 is an abundant number, since it is smaller than the sum of its proper divisors (237586120900).

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

211131132140 is a wasteful number, since it uses less digits than its factorization.

211131132140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127187521 (or 127187519 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 211131132140 its reverse (41231131112), we get a palindrome (252362263252).

The spelling of 211131132140 in words is "two hundred eleven billion, one hundred thirty-one million, one hundred thirty-two thousand, one hundred forty".