1125334511321 has 4 divisors (see below), whose sum is σ = 1126091294592. Its totient is φ = 1124577728052.

The previous prime is 1125334511317. The next prime is 1125334511341. The reversal of 1125334511321 is 1231154335211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1125334511321 - 2² = 1125334511317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125334511341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378389405 + ... + 378392378.

It is an arithmetic number, because the mean of its divisors is an integer number (281522823648).

Almost surely, 2^{1125334511321} is an apocalyptic number.

It is an amenable number.

1125334511321 is a deficient number, since it is larger than the sum of its proper divisors (756783271).

1125334511321 is an equidigital number, since it uses as much as digits as its factorization.

1125334511321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756783270.

The product of its digits is 10800, while the sum is 32.

Adding to 1125334511321 its reverse (1231154335211), we get a palindrome (2356488846532).

The spelling of 1125334511321 in words is "one trillion, one hundred twenty-five billion, three hundred thirty-four million, five hundred eleven thousand, three hundred twenty-one".