120223141561 has 2 divisors, whose sum is σ = 120223141562. Its totient is φ = 120223141560.

The previous prime is 120223141453. The next prime is 120223141579. The reversal of 120223141561 is 165141322021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80014871161 + 40208270400 = 282869^2 + 200520^2 .

It is a cyclic number.

It is not a de Polignac number, because 120223141561 - 2¹³ = 120223133369 is a prime.

It is not a weakly prime, because it can be changed into another prime (120223141061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111570780 + 60111570781.

It is an arithmetic number, because the mean of its divisors is an integer number (60111570781).

Almost surely, 2^120223141561 is an apocalyptic number.

It is an amenable number.

120223141561 is a deficient number, since it is larger than the sum of its proper divisors (1).

120223141561 is an equidigital number, since it uses as much as digits as its factorization.

120223141561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 120223141561 its reverse (165141322021), we get a palindrome (285364463582).

The spelling of 120223141561 in words is "one hundred twenty billion, two hundred twenty-three million, one hundred forty-one thousand, five hundred sixty-one".