1311244430532 has 96 divisors (see below), whose sum is σ = 3181130878464. Its totient is φ = 420057792000.

The previous prime is 1311244430479. The next prime is 1311244430533. The reversal of 1311244430532 is 2350344421131.

It is a junction number, because it is equal to n+sod(n) for n = 1311244430493 and 1311244430502.

It is not an unprimeable number, because it can be changed into a prime (1311244430533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30436407 + ... + 30479457.

It is an arithmetic number, because the mean of its divisors is an integer number (33136779984).

Almost surely, 2^{1311244430532} is an apocalyptic number.

1311244430532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311244430532 is an abundant number, since it is smaller than the sum of its proper divisors (1869886447932).

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

1311244430532 is a wasteful number, since it uses less digits than its factorization.

1311244430532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44049 (or 44047 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1311244430532 its reverse (2350344421131), we get a palindrome (3661588851663).

The spelling of 1311244430532 in words is "one trillion, three hundred eleven billion, two hundred forty-four million, four hundred thirty thousand, five hundred thirty-two".