211431301103 has 16 divisors (see below), whose sum is σ = 244919959200. Its totient is φ = 180385382400.

The previous prime is 211431301099. The next prime is 211431301117. The reversal of 211431301103 is 301103134112.

It is a cyclic number.

It is not a de Polignac number, because 211431301103 - 2² = 211431301099 is a prime.

It is a super-2 number, since 2×211431301103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211431301703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1554578 + ... + 1685103.

It is an arithmetic number, because the mean of its divisors is an integer number (15307497450).

Almost surely, 2^211431301103 is an apocalyptic number.

211431301103 is a deficient number, since it is larger than the sum of its proper divisors (33488658097).

211431301103 is a wasteful number, since it uses less digits than its factorization.

211431301103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240058.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211431301103 its reverse (301103134112), we get a palindrome (512534435215).

The spelling of 211431301103 in words is "two hundred eleven billion, four hundred thirty-one million, three hundred one thousand, one hundred three".