211001130 has 24 divisors (see below), whose sum is σ = 548603172. Its totient is φ = 56266944.

The previous prime is 211001107. The next prime is 211001143. The reversal of 211001130 is 31100112.

It can be written as a sum of positive squares in 2 ways, for example, as 208831401 + 2169729 = 14451^2 + 1473^2 .

It is a super-2 number, since 2×211001130² = 89042953722553800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1172139 + ... + 1172318.

Almost surely, 2^211001130 is an apocalyptic number.

211001130 is an abundant number, since it is smaller than the sum of its proper divisors (337602042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211001130 is a wasteful number, since it uses less digits than its factorization.

211001130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344470 (or 2344467 counting only the distinct ones).

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

The square root of 211001130 is about 14525.8779424860. The cubic root of 211001130 is about 595.3352440729.

Adding to 211001130 its reverse (31100112), we get a palindrome (242101242).

The spelling of 211001130 in words is "two hundred eleven million, one thousand, one hundred thirty".