312311233321142 has 24 divisors (see below), whose sum is σ = 515313244630296. Its totient is φ = 141959651363200.

The previous prime is 312311233321069. The next prime is 312311233321183. The reversal of 312311233321142 is 241123332113213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312311233321099 and 312311233321108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484479659 + ... + 485123862.

It is an arithmetic number, because the mean of its divisors is an integer number (21471385192929).

Almost surely, 2^{312311233321142} is an apocalyptic number.

312311233321142 is a deficient number, since it is larger than the sum of its proper divisors (203002011309154).

312311233321142 is an frugal number, since it uses more digits than its factorization.

312311233321142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969603578 (or 969603534 counting only the distinct ones).

The product of its digits is 15552, while the sum is 32.

Adding to 312311233321142 its reverse (241123332113213), we get a palindrome (553434565434355).

The spelling of 312311233321142 in words is "three hundred twelve trillion, three hundred eleven billion, two hundred thirty-three million, three hundred twenty-one thousand, one hundred forty-two".