1311143312430 has 96 divisors (see below), whose sum is σ = 3926645858304. Its totient is φ = 297330118848.

The previous prime is 1311143312393. The next prime is 1311143312449. The reversal of 1311143312430 is 342133411131.

1311143312430 is a `hidden beast` number, since 1 + 311 + 1 + 4 + 3 + 312 + 4 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1311143312394 and 1311143312403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8113612 + ... + 8273631.

It is an arithmetic number, because the mean of its divisors is an integer number (40902561024).

Almost surely, 2^{1311143312430} is an apocalyptic number.

1311143312430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311143312430 is an abundant number, since it is smaller than the sum of its proper divisors (2615502545874).

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

1311143312430 is a wasteful number, since it uses less digits than its factorization.

1311143312430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16387390 (or 16387387 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 1311143312430 its reverse (342133411131), we get a palindrome (1653276723561).

The spelling of 1311143312430 in words is "one trillion, three hundred eleven billion, one hundred forty-three million, three hundred twelve thousand, four hundred thirty".