11321221994653 has 2 divisors, whose sum is σ = 11321221994654. Its totient is φ = 11321221994652.

The previous prime is 11321221994617. The next prime is 11321221994683. The reversal of 11321221994653 is 35649912212311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7168829536089 + 4152392458564 = 2677467^2 + 2037742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321221994653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11321221994597 and 11321221994606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321221994603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610997326 + 5660610997327.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610997327).

Almost surely, 2^{11321221994653} is an apocalyptic number.

It is an amenable number.

11321221994653 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321221994653 is an equidigital number, since it uses as much as digits as its factorization.

11321221994653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 699840, while the sum is 49.

The spelling of 11321221994653 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, nine hundred ninety-four thousand, six hundred fifty-three".