211011212131 has 8 divisors (see below), whose sum is σ = 223577641584. Its totient is φ = 198461894400.

The previous prime is 211011212119. The next prime is 211011212143. The reversal of 211011212131 is 131212110112.

It is a happy number.

211011212131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211011212119) and next prime (211011212143).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211011212131 - 2¹⁹ = 211010687843 is a prime.

It is a super-2 number, since 2×211011212131² (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 (211011210131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252530 + ... + 4301863.

It is an arithmetic number, because the mean of its divisors is an integer number (27947205198).

Almost surely, 2^211011212131 is an apocalyptic number.

211011212131 is a deficient number, since it is larger than the sum of its proper divisors (12566429453).

211011212131 is a wasteful number, since it uses less digits than its factorization.

211011212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8555861.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 211011212131 its reverse (131212110112), we get a palindrome (342223322243).

The spelling of 211011212131 in words is "two hundred eleven billion, eleven million, two hundred twelve thousand, one hundred thirty-one".