1313313230121 has 4 divisors (see below), whose sum is σ = 1751084306832. Its totient is φ = 875542153412.

The previous prime is 1313313230111. The next prime is 1313313230153. The reversal of 1313313230121 is 1210323133131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313313230121 - 2¹⁰ = 1313313229097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313313230091 and 1313313230100.

It is not an unprimeable number, because it can be changed into a prime (1313313230111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218885538351 + ... + 218885538356.

It is an arithmetic number, because the mean of its divisors is an integer number (437771076708).

Almost surely, 2^{1313313230121} is an apocalyptic number.

It is an amenable number.

1313313230121 is a deficient number, since it is larger than the sum of its proper divisors (437771076711).

1313313230121 is an equidigital number, since it uses as much as digits as its factorization.

1313313230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437771076710.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1313313230121 its reverse (1210323133131), we get a palindrome (2523636363252).

The spelling of 1313313230121 in words is "one trillion, three hundred thirteen billion, three hundred thirteen million, two hundred thirty thousand, one hundred twenty-one".