1313122122 has 48 divisors (see below), whose sum is σ = 3067515360. Its totient is φ = 403567776.

The previous prime is 1313122093. The next prime is 1313122127. The reversal of 1313122122 is 2212213131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1313122095 and 1313122104.

It is not an unprimeable number, because it can be changed into a prime (1313122127) 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, 235693 + ... + 241199.

It is an arithmetic number, because the mean of its divisors is an integer number (63906570).

Almost surely, 2^1313122122 is an apocalyptic number.

1313122122 is an abundant number, since it is smaller than the sum of its proper divisors (1754393238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313122122 is a wasteful number, since it uses less digits than its factorization.

1313122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6547 (or 6544 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1313122122 is about 36237.0269475850. The cubic root of 1313122122 is about 1095.0527478187.

Adding to 1313122122 its reverse (2212213131), we get a palindrome (3525335253).

It can be divided in two parts, 13131 and 22122, that added together give a palindrome (35253).

The spelling of 1313122122 in words is "one billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred twenty-two".