312403420040143 has 8 divisors (see below), whose sum is σ = 312482556531936. Its totient is φ = 312324286137600.

The previous prime is 312403420040123. The next prime is 312403420040161. The reversal of 312403420040143 is 341040024304213.

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

It is a cyclic number.

It is not a de Polignac number, because 312403420040143 - 2²⁵ = 312403386485711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312403420040123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253263723 + ... + 254494243.

It is an arithmetic number, because the mean of its divisors is an integer number (39060319566492).

Almost surely, 2^{312403420040143} is an apocalyptic number.

312403420040143 is a deficient number, since it is larger than the sum of its proper divisors (79136491793).

312403420040143 is a wasteful number, since it uses less digits than its factorization.

312403420040143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294625.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 312403420040143 its reverse (341040024304213), we get a palindrome (653443444344356).

The spelling of 312403420040143 in words is "three hundred twelve trillion, four hundred three billion, four hundred twenty million, forty thousand, one hundred forty-three".