11220120131321 has 2 divisors, whose sum is σ = 11220120131322. Its totient is φ = 11220120131320.

The previous prime is 11220120131309. The next prime is 11220120131347. The reversal of 11220120131321 is 12313102102211.

11220120131321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7311832321600 + 3908287809721 = 2704040^2 + 1976939^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220120131321 - 2⁴² = 6822073620217 is a prime.

It is a super-2 number, since 2×11220120131321² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11220120131293 and 11220120131302.

It is not a weakly prime, because it can be changed into another prime (11220120131021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610060065660 + 5610060065661.

It is an arithmetic number, because the mean of its divisors is an integer number (5610060065661).

Almost surely, 2^{11220120131321} is an apocalyptic number.

It is an amenable number.

11220120131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220120131321 is an equidigital number, since it uses as much as digits as its factorization.

11220120131321 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 20.

Adding to 11220120131321 its reverse (12313102102211), we get a palindrome (23533222233532).

The spelling of 11220120131321 in words is "eleven trillion, two hundred twenty billion, one hundred twenty million, one hundred thirty-one thousand, three hundred twenty-one".