1311311300232 has 16 divisors (see below), whose sum is σ = 3278278250640. Its totient is φ = 437103766736.

The previous prime is 1311311300231. The next prime is 1311311300267. The reversal of 1311311300232 is 2320031131131.

It is a happy number.

It is a super-2 number, since 2×1311311300232² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311311300199 and 1311311300208.

It is not an unprimeable number, because it can be changed into a prime (1311311300231) 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, 27318985398 + ... + 27318985445.

It is an arithmetic number, because the mean of its divisors is an integer number (204892390665).

Almost surely, 2^{1311311300232} is an apocalyptic number.

1311311300232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311311300232 is an abundant number, since it is smaller than the sum of its proper divisors (1966966950408).

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

1311311300232 is a wasteful number, since it uses less digits than its factorization.

1311311300232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54637970852 (or 54637970848 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1311311300232 its reverse (2320031131131), we get a palindrome (3631342431363).

The spelling of 1311311300232 in words is "one trillion, three hundred eleven billion, three hundred eleven million, three hundred thousand, two hundred thirty-two".