312223344213202 has 4 divisors (see below), whose sum is σ = 468335016319806. Its totient is φ = 156111672106600.

The previous prime is 312223344213199. The next prime is 312223344213251. The reversal of 312223344213202 is 202312443322213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 310603296371481 + 1620047841721 = 17623941^2 + 1272811^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78055836053299 + ... + 78055836053302.

Almost surely, 2^{312223344213202} is an apocalyptic number.

312223344213202 is a deficient number, since it is larger than the sum of its proper divisors (156111672106604).

312223344213202 is a wasteful number, since it uses less digits than its factorization.

312223344213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156111672106603.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 312223344213202 its reverse (202312443322213), we get a palindrome (514535787535415).

The spelling of 312223344213202 in words is "three hundred twelve trillion, two hundred twenty-three billion, three hundred forty-four million, two hundred thirteen thousand, two hundred two".