302143343420 has 24 divisors (see below), whose sum is σ = 656380368000. Its totient is φ = 116689842752.

The previous prime is 302143343419. The next prime is 302143343431. The reversal of 302143343420 is 24343341203.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260467820 + ... + 260468979.

It is an arithmetic number, because the mean of its divisors is an integer number (27349182000).

Almost surely, 2^302143343420 is an apocalyptic number.

It is an amenable number.

302143343420 is an abundant number, since it is smaller than the sum of its proper divisors (354237024580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302143343420 is a wasteful number, since it uses less digits than its factorization.

302143343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520936837 (or 520936835 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 302143343420 its reverse (24343341203), we get a palindrome (326486684623).

The spelling of 302143343420 in words is "three hundred two billion, one hundred forty-three million, three hundred forty-three thousand, four hundred twenty".