211301134540 has 24 divisors (see below), whose sum is σ = 453173499072. Its totient is φ = 82722145920.

The previous prime is 211301134519. The next prime is 211301134553. The reversal of 211301134540 is 45431103112.

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, 112393281 + ... + 112395160.

It is an arithmetic number, because the mean of its divisors is an integer number (18882229128).

Almost surely, 2^211301134540 is an apocalyptic number.

211301134540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211301134540 is an abundant number, since it is smaller than the sum of its proper divisors (241872364532).

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

211301134540 is a wasteful number, since it uses less digits than its factorization.

211301134540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224788497 (or 224788495 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 211301134540 its reverse (45431103112), we get a palindrome (256732237652).

The spelling of 211301134540 in words is "two hundred eleven billion, three hundred one million, one hundred thirty-four thousand, five hundred forty".