210040011 has 12 divisors (see below), whose sum is σ = 313853280. Its totient is φ = 135198000.

The previous prime is 210040001. The next prime is 210040013. The reversal of 210040011 is 110040012.

It is a happy number.

210040011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210040011 - 2¹³ = 210031819 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 210039975 and 210040002.

It is not an unprimeable number, because it can be changed into a prime (210040013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402115 + ... + 402636.

It is an arithmetic number, because the mean of its divisors is an integer number (26154440).

Almost surely, 2^210040011 is an apocalyptic number.

210040011 is a deficient number, since it is larger than the sum of its proper divisors (103813269).

210040011 is a wasteful number, since it uses less digits than its factorization.

210040011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804786 (or 804783 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 210040011 is about 14492.7571910938. The cubic root of 210040011 is about 594.4299424444.

Adding to 210040011 its reverse (110040012), we get a palindrome (320080023).

Subtracting from 210040011 its reverse (110040012), we obtain a palindrome (99999999).

The spelling of 210040011 in words is "two hundred ten million, forty thousand, eleven".