1313122115235 has 24 divisors (see below), whose sum is σ = 2444015040336. Its totient is φ = 600284395200.

The previous prime is 1313122115219. The next prime is 1313122115237. The reversal of 1313122115235 is 5325112213131.

It is a happy number.

It is not a de Polignac number, because 1313122115235 - 2⁴ = 1313122115219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313122115237) 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, 893279616 + ... + 893281085.

It is an arithmetic number, because the mean of its divisors is an integer number (101833960014).

Almost surely, 2^{1313122115235} is an apocalyptic number.

1313122115235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1313122115235 is a deficient number, since it is larger than the sum of its proper divisors (1130892925101).

1313122115235 is a wasteful number, since it uses less digits than its factorization.

1313122115235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786560723 (or 1786560716 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

Adding to 1313122115235 its reverse (5325112213131), we get a palindrome (6638234328366).

The spelling of 1313122115235 in words is "one trillion, three hundred thirteen billion, one hundred twenty-two million, one hundred fifteen thousand, two hundred thirty-five".