318720157343 has 24 divisors (see below), whose sum is σ = 374240058192. Its totient is φ = 270633519744.

The previous prime is 318720157339. The next prime is 318720157409. The reversal of 318720157343 is 343751027813.

It is a happy number.

It is not a de Polignac number, because 318720157343 - 2² = 318720157339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 318720157294 and 318720157303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318720157043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2178296 + ... + 2320002.

It is an arithmetic number, because the mean of its divisors is an integer number (15593335758).

Almost surely, 2^318720157343 is an apocalyptic number.

318720157343 is a deficient number, since it is larger than the sum of its proper divisors (55519900849).

318720157343 is a wasteful number, since it uses less digits than its factorization.

318720157343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142151 (or 142144 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 318720157343 in words is "three hundred eighteen billion, seven hundred twenty million, one hundred fifty-seven thousand, three hundred forty-three".