1310012021325 has 48 divisors (see below), whose sum is σ = 2478359410560. Its totient is φ = 598122193920.

The previous prime is 1310012021323. The next prime is 1310012021341. The reversal of 1310012021325 is 5231202100131.

It is not a de Polignac number, because 1310012021325 - 2¹ = 1310012021323 is a prime.

It is a super-2 number, since 2×1310012021325² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310012021323) 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 47 ways as a sum of consecutive naturals, for example, 1117464 + ... + 1966913.

It is an arithmetic number, because the mean of its divisors is an integer number (51632487720).

Almost surely, 2^{1310012021325} is an apocalyptic number.

1310012021325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1310012021325 is a deficient number, since it is larger than the sum of its proper divisors (1168347389235).

1310012021325 is a wasteful number, since it uses less digits than its factorization.

1310012021325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085206 (or 3085201 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 1310012021325 its reverse (5231202100131), we get a palindrome (6541214121456).

The spelling of 1310012021325 in words is "one trillion, three hundred ten billion, twelve million, twenty-one thousand, three hundred twenty-five".