1361205630105 has 16 divisors (see below), whose sum is σ = 2180005228800. Its totient is φ = 725284262528.

The previous prime is 1361205630067. The next prime is 1361205630107. The reversal of 1361205630105 is 5010365021631.

It is a cyclic number.

It is not a de Polignac number, because 1361205630105 - 2¹³ = 1361205621913 is a prime.

It is a super-2 number, since 2×1361205630105² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361205630107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43238337 + ... + 43269806.

It is an arithmetic number, because the mean of its divisors is an integer number (136250326800).

Almost surely, 2^{1361205630105} is an apocalyptic number.

1361205630105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1361205630105 is a deficient number, since it is larger than the sum of its proper divisors (818799598695).

1361205630105 is a wasteful number, since it uses less digits than its factorization.

1361205630105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86509200.

The product of its (nonzero) digits is 16200, while the sum is 33.

The spelling of 1361205630105 in words is "one trillion, three hundred sixty-one billion, two hundred five million, six hundred thirty thousand, one hundred five".