1311264362142 has 64 divisors (see below), whose sum is σ = 3339123701760. Its totient is φ = 373642504992.

The previous prime is 1311264362131. The next prime is 1311264362159. The reversal of 1311264362142 is 2412634621131.

1311264362142 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 6 + 436 + 214 + 2 = 666.

It is a super-2 number, since 2×1311264362142² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1311264362097 and 1311264362106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4509078 + ... + 4791065.

It is an arithmetic number, because the mean of its divisors is an integer number (52173807840).

Almost surely, 2^{1311264362142} is an apocalyptic number.

1311264362142 is an abundant number, since it is smaller than the sum of its proper divisors (2027859339618).

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

1311264362142 is a wasteful number, since it uses less digits than its factorization.

1311264362142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9300534 (or 9300528 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

Adding to 1311264362142 its reverse (2412634621131), we get a palindrome (3723898983273).

The spelling of 1311264362142 in words is "one trillion, three hundred eleven billion, two hundred sixty-four million, three hundred sixty-two thousand, one hundred forty-two".