11321131220101 has 2 divisors, whose sum is σ = 11321131220102. Its totient is φ = 11321131220100.

The previous prime is 11321131220093. The next prime is 11321131220143. The reversal of 11321131220101 is 10102213112311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8014730860900 + 3306400359201 = 2831030^2 + 1818351^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321131220101 - 2³ = 11321131220093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321131220171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660565610050 + 5660565610051.

It is an arithmetic number, because the mean of its divisors is an integer number (5660565610051).

Almost surely, 2^{11321131220101} is an apocalyptic number.

It is an amenable number.

11321131220101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321131220101 is an equidigital number, since it uses as much as digits as its factorization.

11321131220101 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 11321131220101 its reverse (10102213112311), we get a palindrome (21423344332412).

The spelling of 11321131220101 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirty-one million, two hundred twenty thousand, one hundred one".