3121140204 has 216 divisors, whose sum is σ = 10156389152. Its totient is φ = 786931200.

The previous prime is 3121140163. The next prime is 3121140257. The reversal of 3121140204 is 4020411213.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1732104 + ... + 1733904.

Almost surely, 2^3121140204 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 3121140204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5078194576).

3121140204 is an abundant number, since it is smaller than the sum of its proper divisors (7035248948).

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

3121140204 is a wasteful number, since it uses less digits than its factorization.

3121140204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877 (or 1849 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3121140204 is about 55867.1657058061. The cubic root of 3121140204 is about 1461.4066951446.

Adding to 3121140204 its reverse (4020411213), we get a palindrome (7141551417).

The spelling of 3121140204 in words is "three billion, one hundred twenty-one million, one hundred forty thousand, two hundred four".