1320220131911 has 2 divisors, whose sum is σ = 1320220131912. Its totient is φ = 1320220131910.

The previous prime is 1320220131899. The next prime is 1320220131917. The reversal of 1320220131911 is 1191310220231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320220131911 - 2¹⁴ = 1320220115527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320220131917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660110065955 + 660110065956.

It is an arithmetic number, because the mean of its divisors is an integer number (660110065956).

Almost surely, 2^{1320220131911} is an apocalyptic number.

1320220131911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320220131911 is an equidigital number, since it uses as much as digits as its factorization.

1320220131911 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 1320220131911 in words is "one trillion, three hundred twenty billion, two hundred twenty million, one hundred thirty-one thousand, nine hundred eleven".