1311232444652 has 48 divisors (see below), whose sum is σ = 2519866370112. Its totient is φ = 593374636800.

The previous prime is 1311232444637. The next prime is 1311232444729. The reversal of 1311232444652 is 2564442321131.

It is a super-2 number, since 2×1311232444652² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671003 + ... + 1752914.

It is an arithmetic number, because the mean of its divisors is an integer number (52497216044).

Almost surely, 2^{1311232444652} is an apocalyptic number.

It is an amenable number.

1311232444652 is a deficient number, since it is larger than the sum of its proper divisors (1208633925460).

1311232444652 is a wasteful number, since it uses less digits than its factorization.

1311232444652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2424138 (or 2424136 counting only the distinct ones).

The product of its digits is 138240, while the sum is 38.

Adding to 1311232444652 its reverse (2564442321131), we get a palindrome (3875674765783).

The spelling of 1311232444652 in words is "one trillion, three hundred eleven billion, two hundred thirty-two million, four hundred forty-four thousand, six hundred fifty-two".