3121141240 has 192 divisors, whose sum is σ = 8654104800. Its totient is φ = 1008387072.

The previous prime is 3121141217. The next prime is 3121141271. The reversal of 3121141240 is 421411213.

3121141240 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 47 ways as a sum of consecutive naturals, for example, 2443482 + ... + 2444758.

Almost surely, 2^3121141240 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 3121141240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4327052400).

3121141240 is an abundant number, since it is smaller than the sum of its proper divisors (5532963560).

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

3121141240 is a wasteful number, since it uses less digits than its factorization.

3121141240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1363 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 3121141240 is about 55867.1749777989. The cubic root of 3121141240 is about 1461.4068568395.

Adding to 3121141240 its reverse (421411213), we get a palindrome (3542552453).

The spelling of 3121141240 in words is "three billion, one hundred twenty-one million, one hundred forty-one thousand, two hundred forty".