1105300780421 has 2 divisors, whose sum is σ = 1105300780422. Its totient is φ = 1105300780420.

The previous prime is 1105300780393. The next prime is 1105300780469. The reversal of 1105300780421 is 1240870035011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1096816344100 + 8484436321 = 1047290^2 + 92111^2 .

It is an emirp because it is prime and its reverse (1240870035011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1105300780421 - 2⁶ = 1105300780357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105300780481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552650390210 + 552650390211.

It is an arithmetic number, because the mean of its divisors is an integer number (552650390211).

Almost surely, 2^{1105300780421} is an apocalyptic number.

It is an amenable number.

1105300780421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105300780421 is an equidigital number, since it uses as much as digits as its factorization.

1105300780421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The spelling of 1105300780421 in words is "one trillion, one hundred five billion, three hundred million, seven hundred eighty thousand, four hundred twenty-one".