1313201122133 has 4 divisors (see below), whose sum is σ = 1313845165920. Its totient is φ = 1312557078348.

The previous prime is 1313201122073. The next prime is 1313201122147. The reversal of 1313201122133 is 3312211023131.

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 1313201122133 - 2²⁴ = 1313184344917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1313201122099 and 1313201122108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313201128133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322018835 + ... + 322022912.

It is an arithmetic number, because the mean of its divisors is an integer number (328461291480).

Almost surely, 2^{1313201122133} is an apocalyptic number.

It is an amenable number.

1313201122133 is a deficient number, since it is larger than the sum of its proper divisors (644043787).

1313201122133 is an equidigital number, since it uses as much as digits as its factorization.

1313201122133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644043786.

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

Adding to 1313201122133 its reverse (3312211023131), we get a palindrome (4625412145264).

The spelling of 1313201122133 in words is "one trillion, three hundred thirteen billion, two hundred one million, one hundred twenty-two thousand, one hundred thirty-three".