312245531403225 has 96 divisors (see below), whose sum is σ = 593647771444224. Its totient is φ = 141857264736000.

The previous prime is 312245531403199. The next prime is 312245531403229. The reversal of 312245531403225 is 522304135542213.

It is not a de Polignac number, because 312245531403225 - 2¹⁰ = 312245531402201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (312245531403229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1720052314 + ... + 1720233836.

It is an arithmetic number, because the mean of its divisors is an integer number (6183830952544).

Almost surely, 2^{312245531403225} is an apocalyptic number.

312245531403225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312245531403225 is a deficient number, since it is larger than the sum of its proper divisors (281402240040999).

312245531403225 is a wasteful number, since it uses less digits than its factorization.

312245531403225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201807 (or 201802 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

Adding to 312245531403225 its reverse (522304135542213), we get a palindrome (834549666945438).

The spelling of 312245531403225 in words is "three hundred twelve trillion, two hundred forty-five billion, five hundred thirty-one million, four hundred three thousand, two hundred twenty-five".