23100302021 has 2 divisors, whose sum is σ = 23100302022. Its totient is φ = 23100302020.

The previous prime is 23100301969. The next prime is 23100302039. The reversal of 23100302021 is 12020300132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19185297121 + 3915004900 = 138511^2 + 62570^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100302021 - 2⁶ = 23100301957 is a prime.

It is a super-2 number, since 2×23100302021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23100301987 and 23100302005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23100302051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550151010 + 11550151011.

It is an arithmetic number, because the mean of its divisors is an integer number (11550151011).

Almost surely, 2^23100302021 is an apocalyptic number.

It is an amenable number.

23100302021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100302021 is an equidigital number, since it uses as much as digits as its factorization.

23100302021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23100302021 its reverse (12020300132), we get a palindrome (35120602153).

The spelling of 23100302021 in words is "twenty-three billion, one hundred million, three hundred two thousand, twenty-one".