120311004 has 48 divisors (see below), whose sum is σ = 309254400. Its totient is φ = 36099840.

The previous prime is 120311003. The next prime is 120311011. The reversal of 120311004 is 400113021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120311003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9172 + ... + 18020.

It is an arithmetic number, because the mean of its divisors is an integer number (6442800).

Almost surely, 2^120311004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120311004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154627200).

120311004 is an abundant number, since it is smaller than the sum of its proper divisors (188943396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120311004 is a wasteful number, since it uses less digits than its factorization.

120311004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8970 (or 8968 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 120311004 is about 10968.6372900192. The cubic root of 120311004 is about 493.6681593991.

Adding to 120311004 its reverse (400113021), we get a palindrome (520424025).

It can be divided in two parts, 120 and 311004, that multiplied together give a triangular number (37320480 = T₈₆₃₉).

The spelling of 120311004 in words is "one hundred twenty million, three hundred eleven thousand, four".