12021000353 has 2 divisors, whose sum is σ = 12021000354. Its totient is φ = 12021000352.

The previous prime is 12021000191. The next prime is 12021000361. The reversal of 12021000353 is 35300012021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9679214689 + 2341785664 = 98383^2 + 48392^2 .

It is an emirp because it is prime and its reverse (35300012021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021000353 - 2²² = 12016806049 is a prime.

It is a super-2 number, since 2×12021000353² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12021006353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010500176 + 6010500177.

It is an arithmetic number, because the mean of its divisors is an integer number (6010500177).

Almost surely, 2^12021000353 is an apocalyptic number.

It is an amenable number.

12021000353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021000353 is an equidigital number, since it uses as much as digits as its factorization.

12021000353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 12021000353 its reverse (35300012021), we get a palindrome (47321012374).

The spelling of 12021000353 in words is "twelve billion, twenty-one million, three hundred fifty-three", and thus it is an aban number.