211120031101 has 16 divisors (see below), whose sum is σ = 253278111744. Its totient is φ = 172055697264.

The previous prime is 211120031093. The next prime is 211120031201. The reversal of 211120031101 is 101130021112.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 211120031101 - 2³ = 211120031093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120031201) 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, 3899175 + ... + 3952948.

It is an arithmetic number, because the mean of its divisors is an integer number (15829881984).

Almost surely, 2^211120031101 is an apocalyptic number.

It is an amenable number.

211120031101 is a deficient number, since it is larger than the sum of its proper divisors (42158080643).

211120031101 is a wasteful number, since it uses less digits than its factorization.

211120031101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852320.

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

Adding to 211120031101 its reverse (101130021112), we get a palindrome (312250052213).

The spelling of 211120031101 in words is "two hundred eleven billion, one hundred twenty million, thirty-one thousand, one hundred one".