1313411044221 has 24 divisors (see below), whose sum is σ = 1934294441976. Its totient is φ = 858486520320.

The previous prime is 1313411044189. The next prime is 1313411044223. The reversal of 1313411044221 is 1224401143131.

It is a happy number.

1313411044221 is a `hidden beast` number, since 1 + 3 + 134 + 1 + 104 + 422 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 478325775321 + 835085268900 = 691611^2 + 913830^2 .

It is not a de Polignac number, because 1313411044221 - 2⁵ = 1313411044189 is a prime.

It is a super-3 number, since 3×1313411044221³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313411044223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277200 + ... + 1644281.

It is an arithmetic number, because the mean of its divisors is an integer number (80595601749).

Almost surely, 2^{1313411044221} is an apocalyptic number.

It is an amenable number.

1313411044221 is a deficient number, since it is larger than the sum of its proper divisors (620883397755).

1313411044221 is a wasteful number, since it uses less digits than its factorization.

1313411044221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922973 (or 1922970 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1313411044221 its reverse (1224401143131), we get a palindrome (2537812187352).

The spelling of 1313411044221 in words is "one trillion, three hundred thirteen billion, four hundred eleven million, forty-four thousand, two hundred twenty-one".