3121441240 has 32 divisors (see below), whose sum is σ = 7026274080. Its totient is φ = 1248037632.

The previous prime is 3121441223. The next prime is 3121441283. The reversal of 3121441240 is 421441213.

It is a happy number.

3121441240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84532 + ... + 115708.

It is an arithmetic number, because the mean of its divisors is an integer number (219571065).

Almost surely, 2^3121441240 is an apocalyptic number.

It is an amenable number.

3121441240 is an abundant number, since it is smaller than the sum of its proper divisors (3904832840).

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

3121441240 is a wasteful number, since it uses less digits than its factorization.

3121441240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33691 (or 33687 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3121441240 is about 55869.8598530549. The cubic root of 3121441240 is about 1461.4536781758.

Adding to 3121441240 its reverse (421441213), we get a palindrome (3542882453).

The spelling of 3121441240 in words is "three billion, one hundred twenty-one million, four hundred forty-one thousand, two hundred forty".