3121135203 has 8 divisors (see below), whose sum is σ = 4171170816. Its totient is φ = 2075928200.

The previous prime is 3121135201. The next prime is 3121135207. The reversal of 3121135203 is 3025311213.

3121135203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3121135203 - 2¹ = 3121135201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3121135203.

It is not an unprimeable number, because it can be changed into a prime (3121135201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205643 + ... + 1208228.

It is an arithmetic number, because the mean of its divisors is an integer number (521396352).

Almost surely, 2^3121135203 is an apocalyptic number.

3121135203 is a deficient number, since it is larger than the sum of its proper divisors (1050035613).

3121135203 is a wasteful number, since it uses less digits than its factorization.

3121135203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414305.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 3121135203 is about 55867.1209478348. The cubic root of 3121135203 is about 1461.4059146074.

Adding to 3121135203 its reverse (3025311213), we get a palindrome (6146446416).

The spelling of 3121135203 in words is "three billion, one hundred twenty-one million, one hundred thirty-five thousand, two hundred three".