1310421211425 has 72 divisors (see below), whose sum is σ = 2453077394040. Its totient is φ = 667834675200.

The previous prime is 1310421211423. The next prime is 1310421211433. The reversal of 1310421211425 is 5241121240131.

1310421211425 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 4 + 21 + 211 + 425 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 657563675409 + 652857536016 = 810903^2 + 807996^2 .

It is not a de Polignac number, because 1310421211425 - 2¹ = 1310421211423 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1310421211423) 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 71 ways as a sum of consecutive naturals, for example, 402286 + ... + 1668135.

Almost surely, 2^{1310421211425} is an apocalyptic number.

1310421211425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1310421211425 is a deficient number, since it is larger than the sum of its proper divisors (1142656182615).

1310421211425 is a wasteful number, since it uses less digits than its factorization.

1310421211425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070563 (or 2070555 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 1310421211425 its reverse (5241121240131), we get a palindrome (6551542451556).

The spelling of 1310421211425 in words is "one trillion, three hundred ten billion, four hundred twenty-one million, two hundred eleven thousand, four hundred twenty-five".