211031021101 has 8 divisors (see below), whose sum is σ = 220211026560. Its totient is φ = 201851410992.

The previous prime is 211031021099. The next prime is 211031021167. The reversal of 211031021101 is 101120130112.

It is a happy number.

211031021101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211031021101 - 2¹ = 211031021099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031028101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652136 + ... + 1775278.

It is an arithmetic number, because the mean of its divisors is an integer number (27526378320).

Almost surely, 2^211031021101 is an apocalyptic number.

It is an amenable number.

211031021101 is a deficient number, since it is larger than the sum of its proper divisors (9180005459).

211031021101 is a wasteful number, since it uses less digits than its factorization.

211031021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197675.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 211031021101 its reverse (101120130112), we get a palindrome (312151151213).

The spelling of 211031021101 in words is "two hundred eleven billion, thirty-one million, twenty-one thousand, one hundred one".