1361322052421 has 8 divisors (see below), whose sum is σ = 1368124231320. Its totient is φ = 1354536732672.

The previous prime is 1361322052399. The next prime is 1361322052457. The reversal of 1361322052421 is 1242502231631.

It can be written as a sum of positive squares in 4 ways, for example, as 357490389025 + 1003831663396 = 597905^2 + 1001914^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1361322052421 - 2¹⁸ = 1361321790277 is a prime.

It is a super-2 number, since 2×1361322052421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361322652421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052876 + ... + 4375893.

It is an arithmetic number, because the mean of its divisors is an integer number (171015528915).

Almost surely, 2^{1361322052421} is an apocalyptic number.

It is an amenable number.

1361322052421 is a deficient number, since it is larger than the sum of its proper divisors (6802178899).

1361322052421 is an equidigital number, since it uses as much as digits as its factorization.

1361322052421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429575.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 1361322052421 in words is "one trillion, three hundred sixty-one billion, three hundred twenty-two million, fifty-two thousand, four hundred twenty-one".