1311534102252 has 72 divisors (see below), whose sum is σ = 3364434810688. Its totient is φ = 397352688480.

The previous prime is 1311534102247. The next prime is 1311534102287. The reversal of 1311534102252 is 2522014351131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7150563 + ... + 7331685.

Almost surely, 2^{1311534102252} is an apocalyptic number.

1311534102252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311534102252 is an abundant number, since it is smaller than the sum of its proper divisors (2052900708436).

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

1311534102252 is a wasteful number, since it uses less digits than its factorization.

1311534102252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186139 (or 186126 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1311534102252 its reverse (2522014351131), we get a palindrome (3833548453383).

The spelling of 1311534102252 in words is "one trillion, three hundred eleven billion, five hundred thirty-four million, one hundred two thousand, two hundred fifty-two".