331121124 has 36 divisors (see below), whose sum is σ = 837886140. Its totient is φ = 110256960.

The previous prime is 331121117. The next prime is 331121129. The reversal of 331121124 is 421121133.

It can be written as a sum of positive squares in 2 ways, for example, as 183060900 + 148060224 = 13530^2 + 12168^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 331121097 and 331121106.

It is not an unprimeable number, because it can be changed into a prime (331121129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33862 + ... + 42530.

It is an arithmetic number, because the mean of its divisors is an integer number (23274615).

Almost surely, 2^331121124 is an apocalyptic number.

It is an amenable number.

331121124 is an abundant number, since it is smaller than the sum of its proper divisors (506765016).

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

331121124 is a wasteful number, since it uses less digits than its factorization.

331121124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9740 (or 9735 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 331121124 is about 18196.7338827604. The cubic root of 331121124 is about 691.8240082816.

Adding to 331121124 its reverse (421121133), we get a palindrome (752242257).

Subtracting 331121124 from its reverse (421121133), we obtain a palindrome (90000009).

The spelling of 331121124 in words is "three hundred thirty-one million, one hundred twenty-one thousand, one hundred twenty-four".