220313041325921 has 2 divisors, whose sum is σ = 220313041325922. Its totient is φ = 220313041325920.

The previous prime is 220313041325879. The next prime is 220313041325933. The reversal of 220313041325921 is 129523140313022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217745881126225 + 2567160199696 = 14756215^2 + 1602236^2 .

It is a cyclic number.

It is not a de Polignac number, because 220313041325921 - 2⁴⁶ = 149944297148257 is a prime.

It is not a weakly prime, because it can be changed into another prime (220313041327921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110156520662960 + 110156520662961.

It is an arithmetic number, because the mean of its divisors is an integer number (110156520662961).

Almost surely, 2^{220313041325921} is an apocalyptic number.

It is an amenable number.

220313041325921 is a deficient number, since it is larger than the sum of its proper divisors (1).

220313041325921 is an equidigital number, since it uses as much as digits as its factorization.

220313041325921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

Adding to 220313041325921 its reverse (129523140313022), we get a palindrome (349836181638943).

The spelling of 220313041325921 in words is "two hundred twenty trillion, three hundred thirteen billion, forty-one million, three hundred twenty-five thousand, nine hundred twenty-one".