211002041 has 4 divisors (see below), whose sum is σ = 211117284. Its totient is φ = 210886800.

The previous prime is 211002037. The next prime is 211002053. The reversal of 211002041 is 140200112.

211002041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87703225 + 123298816 = 9365^2 + 11104^2 .

It is a cyclic number.

It is not a de Polignac number, because 211002041 - 2² = 211002037 is a prime.

It is a super-2 number, since 2×211002041² = 89043722612331362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211002061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54830 + ... + 58551.

It is an arithmetic number, because the mean of its divisors is an integer number (52779321).

Almost surely, 2^211002041 is an apocalyptic number.

It is an amenable number.

211002041 is a deficient number, since it is larger than the sum of its proper divisors (115243).

211002041 is a wasteful number, since it uses less digits than its factorization.

211002041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115242.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211002041 is about 14525.9093002813. The cubic root of 211002041 is about 595.3361008607.

Adding to 211002041 its reverse (140200112), we get a palindrome (351202153).

The spelling of 211002041 in words is "two hundred eleven million, two thousand, forty-one".