220354340506331 has 2 divisors, whose sum is σ = 220354340506332. Its totient is φ = 220354340506330.

The previous prime is 220354340506301. The next prime is 220354340506397. The reversal of 220354340506331 is 133605043453022.

220354340506331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220354340506331 - 2¹⁰ = 220354340505307 is a prime.

It is a super-2 number, since 2×220354340506331² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220354340506301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110177170253165 + 110177170253166.

It is an arithmetic number, because the mean of its divisors is an integer number (110177170253166).

Almost surely, 2^{220354340506331} is an apocalyptic number.

220354340506331 is a deficient number, since it is larger than the sum of its proper divisors (1).

220354340506331 is an equidigital number, since it uses as much as digits as its factorization.

220354340506331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 220354340506331 its reverse (133605043453022), we get a palindrome (353959383959353).

The spelling of 220354340506331 in words is "two hundred twenty trillion, three hundred fifty-four billion, three hundred forty million, five hundred six thousand, three hundred thirty-one".