1313201321231 has 8 divisors (see below), whose sum is σ = 1391821080624. Its totient is φ = 1234734075520.

The previous prime is 1313201321213. The next prime is 1313201321239. The reversal of 1313201321231 is 1321231023131.

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 1313201321231 - 2⁶ = 1313201321167 is a prime.

It is a super-2 number, since 2×1313201321231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313201321197 and 1313201321206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313201321239) 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, 38110685 + ... + 38145126.

It is an arithmetic number, because the mean of its divisors is an integer number (173977635078).

Almost surely, 2^{1313201321231} is an apocalyptic number.

1313201321231 is a deficient number, since it is larger than the sum of its proper divisors (78619759393).

1313201321231 is a wasteful number, since it uses less digits than its factorization.

1313201321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76256841.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1313201321231 its reverse (1321231023131), we get a palindrome (2634432344362).

The spelling of 1313201321231 in words is "one trillion, three hundred thirteen billion, two hundred one million, three hundred twenty-one thousand, two hundred thirty-one".