312213143112442 has 64 divisors (see below), whose sum is σ = 550358851521024. Its totient is φ = 130959229040640.

The previous prime is 312213143112433. The next prime is 312213143112461. The reversal of 312213143112442 is 244211341312213.

It is a junction number, because it is equal to n+sod(n) for n = 312213143112398 and 312213143112407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21307106788 + ... + 21307121440.

It is an arithmetic number, because the mean of its divisors is an integer number (8599357055016).

Almost surely, 2^{312213143112442} is an apocalyptic number.

312213143112442 is a deficient number, since it is larger than the sum of its proper divisors (238145708408582).

312213143112442 is a wasteful number, since it uses less digits than its factorization.

312213143112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31943.

The product of its digits is 27648, while the sum is 34.

Adding to 312213143112442 its reverse (244211341312213), we get a palindrome (556424484424655).

The spelling of 312213143112442 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred forty-three million, one hundred twelve thousand, four hundred forty-two".