1313122223331 has 12 divisors (see below), whose sum is σ = 1899636752208. Its totient is φ = 874074207024.

The previous prime is 1313122223321. The next prime is 1313122223351. The reversal of 1313122223331 is 1333222213131.

1313122223331 is a `hidden beast` number, since 1 + 313 + 12 + 2 + 2 + 2 + 3 + 331 = 666.

It is not a de Polignac number, because 1313122223331 - 2²⁷ = 1312988005603 is a prime.

It is a super-2 number, since 2×1313122223331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1313122223295 and 1313122223304.

It is not an unprimeable number, because it can be changed into a prime (1313122223311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111711175 + ... + 111722928.

It is an arithmetic number, because the mean of its divisors is an integer number (158303062684).

Almost surely, 2^{1313122223331} is an apocalyptic number.

1313122223331 is a deficient number, since it is larger than the sum of its proper divisors (586514528877).

1313122223331 is a wasteful number, since it uses less digits than its factorization.

1313122223331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223434762 (or 223434759 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1313122223331 its reverse (1333222213131), we get a palindrome (2646344436462).

The spelling of 1313122223331 in words is "one trillion, three hundred thirteen billion, one hundred twenty-two million, two hundred twenty-three thousand, three hundred thirty-one".