312302203213 has 32 divisors (see below), whose sum is σ = 419736764160. Its totient is φ = 224406927360.

The previous prime is 312302203207. The next prime is 312302203243.

312302203213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 312302203213 - 2²¹ = 312300106061 is a prime.

It is a super-2 number, since 2×312302203213² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312302203243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 841533 + ... + 1154461.

It is an arithmetic number, because the mean of its divisors is an integer number (13116773880).

Almost surely, 2^312302203213 is an apocalyptic number.

It is an amenable number.

312302203213 is a deficient number, since it is larger than the sum of its proper divisors (107434560947).

312302203213 is a wasteful number, since it uses less digits than its factorization.

312302203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313957.

The product of its (nonzero) digits is 1296, while the sum is 22.

It can be divided in two parts, 312302 and 203213, that added together give a palindrome (515515).

The spelling of 312302203213 in words is "three hundred twelve billion, three hundred two million, two hundred three thousand, two hundred thirteen".