11301220131121 has 2 divisors, whose sum is σ = 11301220131122. Its totient is φ = 11301220131120.

The previous prime is 11301220131109. The next prime is 11301220131169. The reversal of 11301220131121 is 12113102210311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7223086256400 + 4078133874721 = 2687580^2 + 2019439^2 .

It is an emirp because it is prime and its reverse (12113102210311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11301220131121 is a prime.

It is a super-3 number, since 3×11301220131121³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11301220731121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650610065560 + 5650610065561.

It is an arithmetic number, because the mean of its divisors is an integer number (5650610065561).

Almost surely, 2^{11301220131121} is an apocalyptic number.

It is an amenable number.

11301220131121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301220131121 is an equidigital number, since it uses as much as digits as its factorization.

11301220131121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11301220131121 its reverse (12113102210311), we get a palindrome (23414322341432).

The spelling of 11301220131121 in words is "eleven trillion, three hundred one billion, two hundred twenty million, one hundred thirty-one thousand, one hundred twenty-one".