211031740701 has 6 divisors (see below), whose sum is σ = 304823625470. Its totient is φ = 140687827128.

The previous prime is 211031740697. The next prime is 211031740709. The reversal of 211031740701 is 107047130112.

It can be written as a sum of positive squares in only one way, i.e., 189407744100 + 21623996601 = 435210^2 + 147051^2 .

It is not a de Polignac number, because 211031740701 - 2² = 211031740697 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031740709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11723985586 + ... + 11723985603.

Almost surely, 2^211031740701 is an apocalyptic number.

It is an amenable number.

211031740701 is a deficient number, since it is larger than the sum of its proper divisors (93791884769).

211031740701 is a wasteful number, since it uses less digits than its factorization.

211031740701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23447971195 (or 23447971192 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

Adding to 211031740701 its reverse (107047130112), we get a palindrome (318078870813).

The spelling of 211031740701 in words is "two hundred eleven billion, thirty-one million, seven hundred forty thousand, seven hundred one".