120561224113 has 12 divisors (see below), whose sum is σ = 132545617204. Its totient is φ = 109578031200.

The previous prime is 120561224107. The next prime is 120561224117. The reversal of 120561224113 is 311422165021.

It can be written as a sum of positive squares in 2 ways, for example, as 69278451264 + 51282772849 = 263208^2 + 226457^2 .

It is not a de Polignac number, because 120561224113 - 2¹³ = 120561215921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120561224117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485695 + ... + 690667.

Almost surely, 2^120561224113 is an apocalyptic number.

It is an amenable number.

120561224113 is a deficient number, since it is larger than the sum of its proper divisors (11984393091).

120561224113 is a wasteful number, since it uses less digits than its factorization.

120561224113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209856 (or 209845 counting only the distinct ones).

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

Adding to 120561224113 its reverse (311422165021), we get a palindrome (431983389134).

The spelling of 120561224113 in words is "one hundred twenty billion, five hundred sixty-one million, two hundred twenty-four thousand, one hundred thirteen".