3121140125 has 8 divisors (see below), whose sum is σ = 3895183032. Its totient is φ = 2496912000.

The previous prime is 3121140103. The next prime is 3121140131. The reversal of 3121140125 is 5210411213.

It can be written as a sum of positive squares in 4 ways, for example, as 25664356 + 3095475769 = 5066^2 + 55637^2 .

It is not a de Polignac number, because 3121140125 - 2¹⁶ = 3121074589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121140097 and 3121140106.

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, 12484436 + ... + 12484685.

It is an arithmetic number, because the mean of its divisors is an integer number (486897879).

Almost surely, 2^3121140125 is an apocalyptic number.

It is an amenable number.

3121140125 is a deficient number, since it is larger than the sum of its proper divisors (774042907).

3121140125 is an equidigital number, since it uses as much as digits as its factorization.

3121140125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24969136 (or 24969126 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 3121140125 is about 55867.1649987719. The cubic root of 3121140125 is about 1461.4066828146.

Adding to 3121140125 its reverse (5210411213), we get a palindrome (8331551338).

The spelling of 3121140125 in words is "three billion, one hundred twenty-one million, one hundred forty thousand, one hundred twenty-five".