11220120131309 has 2 divisors, whose sum is σ = 11220120131310. Its totient is φ = 11220120131308.

The previous prime is 11220120131279. The next prime is 11220120131321. The reversal of 11220120131309 is 90313102102211.

11220120131309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10855726808809 + 364393322500 = 3294803^2 + 603650^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220120131309 - 2¹² = 11220120127213 is a prime.

It is a super-2 number, since 2×11220120131309² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220120130309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610060065654 + 5610060065655.

It is an arithmetic number, because the mean of its divisors is an integer number (5610060065655).

Almost surely, 2^{11220120131309} is an apocalyptic number.

It is an amenable number.

11220120131309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220120131309 is an equidigital number, since it uses as much as digits as its factorization.

11220120131309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 11220120131309 in words is "eleven trillion, two hundred twenty billion, one hundred twenty million, one hundred thirty-one thousand, three hundred nine".