211231131101941 has 2 divisors, whose sum is σ = 211231131101942. Its totient is φ = 211231131101940.

The previous prime is 211231131101923. The next prime is 211231131102007. The reversal of 211231131101941 is 149101131132112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202702248921316 + 8528882180625 = 14237354^2 + 2920425^2 .

It is a cyclic number.

It is not a de Polignac number, because 211231131101941 - 2³³ = 211222541167349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211231131105941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615565550970 + 105615565550971.

It is an arithmetic number, because the mean of its divisors is an integer number (105615565550971).

Almost surely, 2^{211231131101941} is an apocalyptic number.

It is an amenable number.

211231131101941 is a deficient number, since it is larger than the sum of its proper divisors (1).

211231131101941 is an equidigital number, since it uses as much as digits as its factorization.

211231131101941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 31.

The spelling of 211231131101941 in words is "two hundred eleven trillion, two hundred thirty-one billion, one hundred thirty-one million, one hundred one thousand, nine hundred forty-one".