211200013131 has 16 divisors (see below), whose sum is σ = 292192398624. Its totient is φ = 135582280704.

The previous prime is 211200013103. The next prime is 211200013169. The reversal of 211200013131 is 131310002112.

It is a happy number.

It is not a de Polignac number, because 211200013131 - 2⁹ = 211200012619 is a prime.

It is a super-2 number, since 2×211200013131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211200013131.

It is not an unprimeable number, because it can be changed into a prime (211200013931) 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, 9796980 + ... + 9818513.

It is an arithmetic number, because the mean of its divisors is an integer number (18262024914).

Almost surely, 2^211200013131 is an apocalyptic number.

211200013131 is a deficient number, since it is larger than the sum of its proper divisors (80992385493).

211200013131 is a wasteful number, since it uses less digits than its factorization.

211200013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19615630.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 211200013131 its reverse (131310002112), we get a palindrome (342510015243).

The spelling of 211200013131 in words is "two hundred eleven billion, two hundred million, thirteen thousand, one hundred thirty-one".