11533354321 has 2 divisors, whose sum is σ = 11533354322. Its totient is φ = 11533354320.

The previous prime is 11533354303. The next prime is 11533354351. The reversal of 11533354321 is 12345333511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6961566096 + 4571788225 = 83436^2 + 67615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11533354321 - 2⁷ = 11533354193 is a prime.

It is not a weakly prime, because it can be changed into another prime (11533354351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5766677160 + 5766677161.

It is an arithmetic number, because the mean of its divisors is an integer number (5766677161).

Almost surely, 2^11533354321 is an apocalyptic number.

It is an amenable number.

11533354321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11533354321 is an equidigital number, since it uses as much as digits as its factorization.

11533354321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

Adding to 11533354321 its reverse (12345333511), we get a palindrome (23878687832).

The spelling of 11533354321 in words is "eleven billion, five hundred thirty-three million, three hundred fifty-four thousand, three hundred twenty-one".