1001231125 has 32 divisors (see below), whose sum is σ = 1337057280. Its totient is φ = 746280000.

The previous prime is 1001231123. The next prime is 1001231131. The reversal of 1001231125 is 5211321001.

1001231125 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1001231125 - 2¹ = 1001231123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1001231099 and 1001231108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001231123) 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 31 ways as a sum of consecutive naturals, for example, 141420 + ... + 148330.

It is an arithmetic number, because the mean of its divisors is an integer number (41783040).

Almost surely, 2^1001231125 is an apocalyptic number.

It is an amenable number.

1001231125 is a deficient number, since it is larger than the sum of its proper divisors (335826155).

1001231125 is an equidigital number, since it uses as much as digits as its factorization.

1001231125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006 (or 6996 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1001231125 is about 31642.2364095839. The cubic root of 1001231125 is about 1000.4102067074.

Adding to 1001231125 its reverse (5211321001), we get a palindrome (6212552126).

The spelling of 1001231125 in words is "one billion, one million, two hundred thirty-one thousand, one hundred twenty-five".