1361391673201 has 12 divisors (see below), whose sum is σ = 1582693971712. Its totient is φ = 1147129040664.

The previous prime is 1361391673189. The next prime is 1361391673241. The reversal of 1361391673201 is 1023761931631.

It is not a de Polignac number, because 1361391673201 - 2¹³ = 1361391665009 is a prime.

It is a super-2 number, since 2×1361391673201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1361391673241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27910785 + ... + 27959518.

Almost surely, 2^{1361391673201} is an apocalyptic number.

It is an amenable number.

1361391673201 is a deficient number, since it is larger than the sum of its proper divisors (221302298511).

1361391673201 is an frugal number, since it uses more digits than its factorization.

1361391673201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55870428 (or 55870369 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 43.

The spelling of 1361391673201 in words is "one trillion, three hundred sixty-one billion, three hundred ninety-one million, six hundred seventy-three thousand, two hundred one".