211231210032131 has 8 divisors (see below), whose sum is σ = 216383451447744. Its totient is φ = 206078981030080.

The previous prime is 211231210032127. The next prime is 211231210032151. The reversal of 211231210032131 is 131230012132112.

It is a happy number.

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 211231210032131 - 2² = 211231210032127 is a prime.

It is a super-2 number, since 2×211231210032131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211231210032097 and 211231210032106.

It is not an unprimeable number, because it can be changed into a prime (211231210032151) 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, 37858085 + ... + 43077801.

It is an arithmetic number, because the mean of its divisors is an integer number (27047931430968).

Almost surely, 2^{211231210032131} is an apocalyptic number.

211231210032131 is a deficient number, since it is larger than the sum of its proper divisors (5152241415613).

211231210032131 is an equidigital number, since it uses as much as digits as its factorization.

211231210032131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6206781.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 211231210032131 its reverse (131230012132112), we get a palindrome (342461222164243).

The spelling of 211231210032131 in words is "two hundred eleven trillion, two hundred thirty-one billion, two hundred ten million, thirty-two thousand, one hundred thirty-one".