312142441443431 has 4 divisors (see below), whose sum is σ = 312142569716664. Its totient is φ = 312142313170200.

The previous prime is 312142441443383. The next prime is 312142441443467. The reversal of 312142441443431 is 134344144241213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312142441443431 is a prime.

It is a super-3 number, since 3×312142441443431³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312142441445431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60414485 + ... + 65377326.

It is an arithmetic number, because the mean of its divisors is an integer number (78035642429166).

Almost surely, 2^{312142441443431} is an apocalyptic number.

312142441443431 is a deficient number, since it is larger than the sum of its proper divisors (128273233).

312142441443431 is a wasteful number, since it uses less digits than its factorization.

312142441443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128273232.

The product of its digits is 442368, while the sum is 41.

Adding to 312142441443431 its reverse (134344144241213), we get a palindrome (446486585684644).

The spelling of 312142441443431 in words is "three hundred twelve trillion, one hundred forty-two billion, four hundred forty-one million, four hundred forty-three thousand, four hundred thirty-one".