302143312343 has 4 divisors (see below), whose sum is σ = 318045591960. Its totient is φ = 286241032728.

The previous prime is 302143312333. The next prime is 302143312349. The reversal of 302143312343 is 343213341203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343213341203 = 14731 ⋅23298713.

It is not a de Polignac number, because 302143312343 - 2²⁴ = 302126535127 is a prime.

It is a super-2 number, since 2×302143312343² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302143312349) 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, 7951139780 + ... + 7951139817.

It is an arithmetic number, because the mean of its divisors is an integer number (79511397990).

Almost surely, 2^302143312343 is an apocalyptic number.

302143312343 is a deficient number, since it is larger than the sum of its proper divisors (15902279617).

302143312343 is a wasteful number, since it uses less digits than its factorization.

302143312343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15902279616.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 302143312343 its reverse (343213341203), we get a palindrome (645356653546).

The spelling of 302143312343 in words is "three hundred two billion, one hundred forty-three million, three hundred twelve thousand, three hundred forty-three".