11210312021 has 2 divisors, whose sum is σ = 11210312022. Its totient is φ = 11210312020.

The previous prime is 11210312017. The next prime is 11210312063. The reversal of 11210312021 is 12021301211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10143309796 + 1067002225 = 100714^2 + 32665^2 .

It is a cyclic number.

It is not a de Polignac number, because 11210312021 - 2² = 11210312017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11210311987 and 11210312005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210312081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605156010 + 5605156011.

It is an arithmetic number, because the mean of its divisors is an integer number (5605156011).

Almost surely, 2^11210312021 is an apocalyptic number.

It is an amenable number.

11210312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210312021 is an equidigital number, since it uses as much as digits as its factorization.

11210312021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11210312021 its reverse (12021301211), we get a palindrome (23231613232).

The spelling of 11210312021 in words is "eleven billion, two hundred ten million, three hundred twelve thousand, twenty-one".