1361777320103 has 2 divisors, whose sum is σ = 1361777320104. Its totient is φ = 1361777320102.

The previous prime is 1361777320091. The next prime is 1361777320147. The reversal of 1361777320103 is 3010237771631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1361777320103 - 2⁶ = 1361777320039 is a prime.

It is a super-3 number, since 3×1361777320103³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361777350103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680888660051 + 680888660052.

It is an arithmetic number, because the mean of its divisors is an integer number (680888660052).

Almost surely, 2^{1361777320103} is an apocalyptic number.

1361777320103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361777320103 is an equidigital number, since it uses as much as digits as its factorization.

1361777320103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 41.

The spelling of 1361777320103 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-seven million, three hundred twenty thousand, one hundred three".