120311144 has 8 divisors (see below), whose sum is σ = 225583410. Its totient is φ = 60155568.

The previous prime is 120311129. The next prime is 120311153. The reversal of 120311144 is 441113021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60248644 + 60062500 = 7762^2 + 7750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7519439 + ... + 7519454.

Almost surely, 2^120311144 is an apocalyptic number.

It is an amenable number.

120311144 is a deficient number, since it is larger than the sum of its proper divisors (105272266).

120311144 is a wasteful number, since it uses less digits than its factorization.

120311144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15038899 (or 15038895 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 120311144 is about 10968.6436718493. The cubic root of 120311144 is about 493.6683508849.

Adding to 120311144 its reverse (441113021), we get a palindrome (561424165).

The spelling of 120311144 in words is "one hundred twenty million, three hundred eleven thousand, one hundred forty-four".