23103320221 has 2 divisors, whose sum is σ = 23103320222. Its totient is φ = 23103320220.

The previous prime is 23103320203. The next prime is 23103320239. The reversal of 23103320221 is 12202330132.

It is a balanced prime because it is at equal distance from previous prime (23103320203) and next prime (23103320239).

It can be written as a sum of positive squares in only one way, i.e., 22203980100 + 899340121 = 149010^2 + 29989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23103320221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23103320321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551660110 + 11551660111.

It is an arithmetic number, because the mean of its divisors is an integer number (11551660111).

Almost surely, 2^23103320221 is an apocalyptic number.

It is an amenable number.

23103320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

23103320221 is an equidigital number, since it uses as much as digits as its factorization.

23103320221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23103320221 its reverse (12202330132), we get a palindrome (35305650353).

The spelling of 23103320221 in words is "twenty-three billion, one hundred three million, three hundred twenty thousand, two hundred twenty-one".