1311003323042 has 48 divisors (see below), whose sum is σ = 2301859680120. Its totient is φ = 558352569600.

The previous prime is 1311003323011. The next prime is 1311003323053. The reversal of 1311003323042 is 2403233001131.

It can be written as a sum of positive squares in 4 ways, for example, as 123319666561 + 1187683656481 = 351169^2 + 1089809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1311003322999 and 1311003323017.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25321742 + ... + 25373462.

Almost surely, 2^{1311003323042} is an apocalyptic number.

1311003323042 is a deficient number, since it is larger than the sum of its proper divisors (990856357078).

1311003323042 is a wasteful number, since it uses less digits than its factorization.

1311003323042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53347 (or 53340 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1311003323042 its reverse (2403233001131), we get a palindrome (3714236324173).

The spelling of 1311003323042 in words is "one trillion, three hundred eleven billion, three million, three hundred twenty-three thousand, forty-two".