1311252234452 has 12 divisors (see below), whose sum is σ = 2295202167636. Its totient is φ = 655480186560.

The previous prime is 1311252234431. The next prime is 1311252234463. The reversal of 1311252234452 is 2544322521131.

It can be written as a sum of positive squares in 2 ways, for example, as 1307994792976 + 3257441476 = 1143676^2 + 57074^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36462449 + ... + 36498392.

It is an arithmetic number, because the mean of its divisors is an integer number (191266847303).

Almost surely, 2^{1311252234452} is an apocalyptic number.

It is an amenable number.

1311252234452 is a deficient number, since it is larger than the sum of its proper divisors (983949933184).

1311252234452 is a wasteful number, since it uses less digits than its factorization.

1311252234452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72965338 (or 72965336 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

Adding to 1311252234452 its reverse (2544322521131), we get a palindrome (3855574755583).

The spelling of 1311252234452 in words is "one trillion, three hundred eleven billion, two hundred fifty-two million, two hundred thirty-four thousand, four hundred fifty-two".