211423101 has 16 divisors (see below), whose sum is σ = 305762688. Its totient is φ = 129420800.

The previous prime is 211423097. The next prime is 211423109. The reversal of 211423101 is 101324112.

It is a cyclic number.

It is not a de Polignac number, because 211423101 - 2² = 211423097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211423109) 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, 48465 + ... + 52646.

It is an arithmetic number, because the mean of its divisors is an integer number (19110168).

Almost surely, 2^211423101 is an apocalyptic number.

It is an amenable number.

211423101 is a deficient number, since it is larger than the sum of its proper divisors (94339587).

211423101 is a wasteful number, since it uses less digits than its factorization.

211423101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101172.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 211423101 is about 14540.3954898070. The cubic root of 211423101 is about 595.7318405751.

Adding to 211423101 its reverse (101324112), we get a palindrome (312747213).

The spelling of 211423101 in words is "two hundred eleven million, four hundred twenty-three thousand, one hundred one".