1234121125 has 16 divisors (see below), whose sum is σ = 1581815664. Its totient is φ = 960609600.

The previous prime is 1234121123. The next prime is 1234121183. The reversal of 1234121125 is 5211214321.

It can be written as a sum of positive squares in 8 ways, for example, as 95531076 + 1138590049 = 9774^2 + 33743^2 .

It is not a de Polignac number, because 1234121125 - 2¹ = 1234121123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1234121096 and 1234121105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234121123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128794 + ... + 138043.

It is an arithmetic number, because the mean of its divisors is an integer number (98863479).

Almost surely, 2^1234121125 is an apocalyptic number.

It is an amenable number.

1234121125 is a deficient number, since it is larger than the sum of its proper divisors (347694539).

1234121125 is an equidigital number, since it uses as much as digits as its factorization.

1234121125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266889 (or 266879 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1234121125 is about 35130.0601337373. The cubic root of 1234121125 is about 1072.6365599681.

Adding to 1234121125 its reverse (5211214321), we get a palindrome (6445335446).

The spelling of 1234121125 in words is "one billion, two hundred thirty-four million, one hundred twenty-one thousand, one hundred twenty-five".