315143320342 has 32 divisors (see below), whose sum is σ = 481157107200. Its totient is φ = 154780495968.

The previous prime is 315143320277. The next prime is 315143320343. The reversal of 315143320342 is 243023341513.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315143320343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80412259 + ... + 80416177.

It is an arithmetic number, because the mean of its divisors is an integer number (15036159600).

Almost surely, 2^315143320342 is an apocalyptic number.

315143320342 is a deficient number, since it is larger than the sum of its proper divisors (166013786858).

315143320342 is a wasteful number, since it uses less digits than its factorization.

315143320342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 315143320342 its reverse (243023341513), we get a palindrome (558166661855).

The spelling of 315143320342 in words is "three hundred fifteen billion, one hundred forty-three million, three hundred twenty thousand, three hundred forty-two".