120722013 has 6 divisors (see below), whose sum is σ = 174376254. Its totient is φ = 80481336.

The previous prime is 120722011. The next prime is 120722047. The reversal of 120722013 is 310227021.

It can be written as a sum of positive squares in only one way, i.e., 85045284 + 35676729 = 9222^2 + 5973^2 .

It is not a de Polignac number, because 120722013 - 2¹ = 120722011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120722011) 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 5 ways as a sum of consecutive naturals, for example, 6706770 + ... + 6706787.

It is an arithmetic number, because the mean of its divisors is an integer number (29062709).

Almost surely, 2^120722013 is an apocalyptic number.

It is an amenable number.

120722013 is a deficient number, since it is larger than the sum of its proper divisors (53654241).

120722013 is a wasteful number, since it uses less digits than its factorization.

120722013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13413563 (or 13413560 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 120722013 is about 10987.3569615263. The cubic root of 120722013 is about 494.2296803311.

Adding to 120722013 its reverse (310227021), we get a palindrome (430949034).

It can be divided in two parts, 1207 and 22013, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 120722013 in words is "one hundred twenty million, seven hundred twenty-two thousand, thirteen".