3125121343 has 8 divisors (see below), whose sum is σ = 3349132128. Its totient is φ = 2908455264.

The previous prime is 3125121319. The next prime is 3125121361. The reversal of 3125121343 is 3431215213.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3125121343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125121443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1835296 + ... + 1836997.

It is an arithmetic number, because the mean of its divisors is an integer number (418641516).

Almost surely, 2^3125121343 is an apocalyptic number.

3125121343 is a deficient number, since it is larger than the sum of its proper divisors (224010785).

3125121343 is a wasteful number, since it uses less digits than its factorization.

3125121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3672353.

The product of its digits is 2160, while the sum is 25.

The square root of 3125121343 is about 55902.7847517456. The cubic root of 3125121343 is about 1462.0277920127.

Adding to 3125121343 its reverse (3431215213), we get a palindrome (6556336556).

The spelling of 3125121343 in words is "three billion, one hundred twenty-five million, one hundred twenty-one thousand, three hundred forty-three".