312204302322442 has 4 divisors (see below), whose sum is σ = 468306453483666. Its totient is φ = 156102151161220.

The previous prime is 312204302322371. The next prime is 312204302322457. The reversal of 312204302322442 is 244223203402213.

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., 209299326086761 + 102904976235681 = 14467181^2 + 10144209^2 .

It is a junction number, because it is equal to n+sod(n) for n = 312204302322398 and 312204302322407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78051075580609 + ... + 78051075580612.

Almost surely, 2^{312204302322442} is an apocalyptic number.

312204302322442 is a deficient number, since it is larger than the sum of its proper divisors (156102151161224).

312204302322442 is a wasteful number, since it uses less digits than its factorization.

312204302322442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156102151161223.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 312204302322442 its reverse (244223203402213), we get a palindrome (556427505724655).

The spelling of 312204302322442 in words is "three hundred twelve trillion, two hundred four billion, three hundred two million, three hundred twenty-two thousand, four hundred forty-two".