1311240452033 has 16 divisors (see below), whose sum is σ = 1334454004800. Its totient is φ = 1288237396800.

The previous prime is 1311240452017. The next prime is 1311240452057. The reversal of 1311240452033 is 3302540421131.

It is a cyclic number.

It is not a de Polignac number, because 1311240452033 - 2⁴ = 1311240452017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311240451987 and 1311240452005.

It is not an unprimeable number, because it can be changed into a prime (1311240452003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27675278 + ... + 27722616.

It is an arithmetic number, because the mean of its divisors is an integer number (83403375300).

Almost surely, 2^{1311240452033} is an apocalyptic number.

It is an amenable number.

1311240452033 is a deficient number, since it is larger than the sum of its proper divisors (23213552767).

1311240452033 is a wasteful number, since it uses less digits than its factorization.

1311240452033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49552.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1311240452033 its reverse (3302540421131), we get a palindrome (4613780873164).

The spelling of 1311240452033 in words is "one trillion, three hundred eleven billion, two hundred forty million, four hundred fifty-two thousand, thirty-three".