211130001 has 6 divisors (see below), whose sum is σ = 304965570. Its totient is φ = 140753328.

The previous prime is 211129999. The next prime is 211130009. The reversal of 211130001 is 100031112.

It can be written as a sum of positive squares in only one way, i.e., 200081025 + 11048976 = 14145^2 + 3324^2 .

It is not a de Polignac number, because 211130001 - 2¹ = 211129999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23458889 = 211130001 / (2 + 1 + 1 + 1 + 3 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (211130009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11729436 + ... + 11729453.

It is an arithmetic number, because the mean of its divisors is an integer number (50827595).

Almost surely, 2^211130001 is an apocalyptic number.

It is an amenable number.

211130001 is a deficient number, since it is larger than the sum of its proper divisors (93835569).

211130001 is a wasteful number, since it uses less digits than its factorization.

211130001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23458895 (or 23458892 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 211130001 is about 14530.3131762533. The cubic root of 211130001 is about 595.4564216768.

Adding to 211130001 its reverse (100031112), we get a palindrome (311161113).

The spelling of 211130001 in words is "two hundred eleven million, one hundred thirty thousand, one".