312143012133442 has 8 divisors (see below), whose sum is σ = 535102306514496. Its totient is φ = 133775576628612.

The previous prime is 312143012133409. The next prime is 312143012133499. The reversal of 312143012133442 is 244331210341213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×312143012133442³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312143012133398 and 312143012133407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11147964719038 + ... + 11147964719065.

It is an arithmetic number, because the mean of its divisors is an integer number (66887788314312).

Almost surely, 2^{312143012133442} is an apocalyptic number.

312143012133442 is a deficient number, since it is larger than the sum of its proper divisors (222959294381054).

312143012133442 is a wasteful number, since it uses less digits than its factorization.

312143012133442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22295929438112.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 312143012133442 its reverse (244331210341213), we get a palindrome (556474222474655).

The spelling of 312143012133442 in words is "three hundred twelve trillion, one hundred forty-three billion, twelve million, one hundred thirty-three thousand, four hundred forty-two".