11063573621 has 2 divisors, whose sum is σ = 11063573622. Its totient is φ = 11063573620.

The previous prime is 11063573569. The next prime is 11063573627. The reversal of 11063573621 is 12637536011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7064402500 + 3999171121 = 84050^2 + 63239^2 .

It is an emirp because it is prime and its reverse (12637536011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11063573621 - 2¹⁴ = 11063557237 is a prime.

It is a super-2 number, since 2×11063573621² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11063573627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5531786810 + 5531786811.

It is an arithmetic number, because the mean of its divisors is an integer number (5531786811).

Almost surely, 2^11063573621 is an apocalyptic number.

It is an amenable number.

11063573621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11063573621 is an equidigital number, since it uses as much as digits as its factorization.

11063573621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 11063573621 in words is "eleven billion, sixty-three million, five hundred seventy-three thousand, six hundred twenty-one".