120531404 has 12 divisors (see below), whose sum is σ = 241062864. Its totient is φ = 51656304.

The previous prime is 120531403. The next prime is 120531413. The reversal of 120531404 is 404135021.

120531404 is an admirable number.

It is a super-2 number, since 2×120531404² = 29055638700422432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120531403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152319 + ... + 2152374.

It is an arithmetic number, because the mean of its divisors is an integer number (20088572).

Almost surely, 2^120531404 is an apocalyptic number.

120531404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

120531404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120531404 is a wasteful number, since it uses less digits than its factorization.

120531404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304704 (or 4304702 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 120531404 is about 10978.6795198694. The cubic root of 120531404 is about 493.9694288479.

Adding to 120531404 its reverse (404135021), we get a palindrome (524666425).

The spelling of 120531404 in words is "one hundred twenty million, five hundred thirty-one thousand, four hundred four".