11300312021 has 2 divisors, whose sum is σ = 11300312022. Its totient is φ = 11300312020.

The previous prime is 11300312017. The next prime is 11300312027. The reversal of 11300312021 is 12021300311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8819275921 + 2481036100 = 93911^2 + 49810^2 .

It is a cyclic number.

It is not a de Polignac number, because 11300312021 - 2² = 11300312017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11300311987 and 11300312005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11300312027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5650156010 + 5650156011.

It is an arithmetic number, because the mean of its divisors is an integer number (5650156011).

Almost surely, 2^11300312021 is an apocalyptic number.

It is an amenable number.

11300312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11300312021 is an equidigital number, since it uses as much as digits as its factorization.

11300312021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11300312021 its reverse (12021300311), we get a palindrome (23321612332).

The spelling of 11300312021 in words is "eleven billion, three hundred million, three hundred twelve thousand, twenty-one".