1002431012425 has 6 divisors (see below), whose sum is σ = 1243014455438. Its totient is φ = 801944809920.

The previous prime is 1002431012413. The next prime is 1002431012441. The reversal of 1002431012425 is 5242101342001.

It can be written as a sum of positive squares in 3 ways, for example, as 964475136 + 1001466537289 = 31056^2 + 1000733^2 .

It is not a de Polignac number, because 1002431012425 - 2³⁹ = 452675198537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 40097240497 = 1002431012425 / (1 + 0 + 0 + 2 + 4 + 3 + 1 + 0 + 1 + 2 + 4 + 2 + 5).

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 1002431012425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20048620224 + ... + 20048620273.

Almost surely, 2^{1002431012425} is an apocalyptic number.

It is an amenable number.

1002431012425 is a deficient number, since it is larger than the sum of its proper divisors (240583443013).

1002431012425 is an equidigital number, since it uses as much as digits as its factorization.

1002431012425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40097240507 (or 40097240502 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1002431012425 its reverse (5242101342001), we get a palindrome (6244532354426).

The spelling of 1002431012425 in words is "one trillion, two billion, four hundred thirty-one million, twelve thousand, four hundred twenty-five".