12125208331 has 4 divisors (see below), whose sum is σ = 12125688664. Its totient is φ = 12124728000.

The previous prime is 12125208203. The next prime is 12125208373. The reversal of 12125208331 is 13380252121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12125208331 - 2⁷ = 12125208203 is a prime.

It is a super-2 number, since 2×12125208331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12125208331.

It is not an unprimeable number, because it can be changed into a prime (12125208391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200070 + ... + 253531.

It is an arithmetic number, because the mean of its divisors is an integer number (3031422166).

Almost surely, 2^12125208331 is an apocalyptic number.

12125208331 is a deficient number, since it is larger than the sum of its proper divisors (480333).

12125208331 is an equidigital number, since it uses as much as digits as its factorization.

12125208331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480332.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 12125208331 in words is "twelve billion, one hundred twenty-five million, two hundred eight thousand, three hundred thirty-one".