312503363305213 has 4 divisors (see below), whose sum is σ = 312618635666208. Its totient is φ = 312388090944220.

The previous prime is 312503363305201. The next prime is 312503363305229.

312503363305213 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312503363305213 - 2³³ = 312494773370621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312503363305513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57636176431 + ... + 57636181852.

It is an arithmetic number, because the mean of its divisors is an integer number (78154658916552).

Almost surely, 2^{312503363305213} is an apocalyptic number.

It is an amenable number.

312503363305213 is a deficient number, since it is larger than the sum of its proper divisors (115272360995).

312503363305213 is a wasteful number, since it uses less digits than its factorization.

312503363305213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115272360994.

The product of its (nonzero) digits is 437400, while the sum is 40.

The spelling of 312503363305213 in words is "three hundred twelve trillion, five hundred three billion, three hundred sixty-three million, three hundred five thousand, two hundred thirteen".