211431301116 has 48 divisors (see below), whose sum is σ = 563846916864. Its totient is φ = 60405716736.

The previous prime is 211431301099. The next prime is 211431301117. The reversal of 211431301116 is 611103134112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211431301117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1832596 + ... + 1944548.

It is an arithmetic number, because the mean of its divisors is an integer number (11746810768).

Almost surely, 2^211431301116 is an apocalyptic number.

It is an amenable number.

211431301116 is an abundant number, since it is smaller than the sum of its proper divisors (352415615748).

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

211431301116 is a wasteful number, since it uses less digits than its factorization.

211431301116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134450 (or 134448 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 211431301116 its reverse (611103134112), we get a palindrome (822534435228).

The spelling of 211431301116 in words is "two hundred eleven billion, four hundred thirty-one million, three hundred one thousand, one hundred sixteen".