120012322805 has 4 divisors (see below), whose sum is σ = 144014787372. Its totient is φ = 96009858240.

The previous prime is 120012322769. The next prime is 120012322823. The reversal of 120012322805 is 508223210021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80552089489 + 39460233316 = 283817^2 + 198646^2 .

It is not a de Polignac number, because 120012322805 - 2¹² = 120012318709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12001232276 + ... + 12001232285.

It is an arithmetic number, because the mean of its divisors is an integer number (36003696843).

Almost surely, 2^120012322805 is an apocalyptic number.

It is an amenable number.

120012322805 is a deficient number, since it is larger than the sum of its proper divisors (24002464567).

120012322805 is an equidigital number, since it uses as much as digits as its factorization.

120012322805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24002464566.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 120012322805 its reverse (508223210021), we get a palindrome (628235532826).

The spelling of 120012322805 in words is "one hundred twenty billion, twelve million, three hundred twenty-two thousand, eight hundred five".