1311112032133 has 4 divisors (see below), whose sum is σ = 1311632110828. Its totient is φ = 1310591953440.

The previous prime is 1311112032121. The next prime is 1311112032259. The reversal of 1311112032133 is 3312302111131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110680639969 + 1200431392164 = 332687^2 + 1095642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311112032133 - 2¹³ = 1311112023941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311112032533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260035566 + ... + 260040607.

It is an arithmetic number, because the mean of its divisors is an integer number (327908027707).

Almost surely, 2^{1311112032133} is an apocalyptic number.

It is an amenable number.

1311112032133 is a deficient number, since it is larger than the sum of its proper divisors (520078695).

1311112032133 is an equidigital number, since it uses as much as digits as its factorization.

1311112032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520078694.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1311112032133 its reverse (3312302111131), we get a palindrome (4623414143264).

The spelling of 1311112032133 in words is "one trillion, three hundred eleven billion, one hundred twelve million, thirty-two thousand, one hundred thirty-three".