312120010322 has 4 divisors (see below), whose sum is σ = 468180015486. Its totient is φ = 156060005160.

The previous prime is 312120010303. The next prime is 312120010331. The reversal of 312120010322 is 223010021213.

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., 310461810481 + 1658199841 = 557191^2 + 40721^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 312120010322.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 78030002579 + ... + 78030002582.

Almost surely, 2^312120010322 is an apocalyptic number.

312120010322 is a deficient number, since it is larger than the sum of its proper divisors (156060005164).

312120010322 is a wasteful number, since it uses less digits than its factorization.

312120010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156060005163.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 312120010322 its reverse (223010021213), we get a palindrome (535130031535).

The spelling of 312120010322 in words is "three hundred twelve billion, one hundred twenty million, ten thousand, three hundred twenty-two".