1311433121352 has 16 divisors (see below), whose sum is σ = 3278582803440. Its totient is φ = 437144373776.

The previous prime is 1311433121333. The next prime is 1311433121371. The reversal of 1311433121352 is 2531213341131.

It is an interprime number because it is at equal distance from previous prime (1311433121333) and next prime (1311433121371).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27321523338 + ... + 27321523385.

It is an arithmetic number, because the mean of its divisors is an integer number (204911425215).

Almost surely, 2^{1311433121352} is an apocalyptic number.

1311433121352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311433121352 is an abundant number, since it is smaller than the sum of its proper divisors (1967149682088).

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

1311433121352 is a wasteful number, since it uses less digits than its factorization.

1311433121352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54643046732 (or 54643046728 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

Adding to 1311433121352 its reverse (2531213341131), we get a palindrome (3842646462483).

The spelling of 1311433121352 in words is "one trillion, three hundred eleven billion, four hundred thirty-three million, one hundred twenty-one thousand, three hundred fifty-two".