1311422535442 has 8 divisors (see below), whose sum is σ = 1981492444476. Its totient is φ = 650925053952.

The previous prime is 1311422535427. The next prime is 1311422535463. The reversal of 1311422535442 is 2445352241131.

It can be written as a sum of positive squares in 2 ways, for example, as 1258702242561 + 52720292881 = 1121919^2 + 229609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1311422535442² (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 (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2393106543 + ... + 2393107090.

Almost surely, 2^{1311422535442} is an apocalyptic number.

1311422535442 is a deficient number, since it is larger than the sum of its proper divisors (670069909034).

1311422535442 is a wasteful number, since it uses less digits than its factorization.

1311422535442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4786213772.

The product of its digits is 115200, while the sum is 37.

Adding to 1311422535442 its reverse (2445352241131), we get a palindrome (3756774776573).

The spelling of 1311422535442 in words is "one trillion, three hundred eleven billion, four hundred twenty-two million, five hundred thirty-five thousand, four hundred forty-two".