211130311331 has 16 divisors (see below), whose sum is σ = 224093276160. Its totient is φ = 198355417920.

The previous prime is 211130311313. The next prime is 211130311387. The reversal of 211130311331 is 133113031112.

It is a cyclic number.

It is not a de Polignac number, because 211130311331 - 2¹⁸ = 211130049187 is a prime.

It is a super-2 number, since 2×211130311331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211130311031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2538650 + ... + 2620496.

It is an arithmetic number, because the mean of its divisors is an integer number (14005829760).

Almost surely, 2^211130311331 is an apocalyptic number.

211130311331 is a deficient number, since it is larger than the sum of its proper divisors (12962964829).

211130311331 is a wasteful number, since it uses less digits than its factorization.

211130311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82994.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 211130311331 its reverse (133113031112), we get a palindrome (344243342443).

The spelling of 211130311331 in words is "two hundred eleven billion, one hundred thirty million, three hundred eleven thousand, three hundred thirty-one".