11331201101081 has 2 divisors, whose sum is σ = 11331201101082. Its totient is φ = 11331201101080.

The previous prime is 11331201100957. The next prime is 11331201101093. The reversal of 11331201101081 is 18010110213311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11119523814025 + 211677287056 = 3334595^2 + 460084^2 .

It is an emirp because it is prime and its reverse (18010110213311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11331201101081 - 2¹⁰ = 11331201100057 is a prime.

It is a super-2 number, since 2×11331201101081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11331201191081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665600550540 + 5665600550541.

It is an arithmetic number, because the mean of its divisors is an integer number (5665600550541).

Almost surely, 2^{11331201101081} is an apocalyptic number.

It is an amenable number.

11331201101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331201101081 is an equidigital number, since it uses as much as digits as its factorization.

11331201101081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 23.

Adding to 11331201101081 its reverse (18010110213311), we get a palindrome (29341311314392).

The spelling of 11331201101081 in words is "eleven trillion, three hundred thirty-one billion, two hundred one million, one hundred one thousand, eighty-one".