302130421540 has 48 divisors (see below), whose sum is σ = 637958022912. Its totient is φ = 120189678336.

The previous prime is 302130421517. The next prime is 302130421543. The reversal of 302130421540 is 45124031203.

It is not an unprimeable number, because it can be changed into a prime (302130421543) 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, 4218469 + ... + 4289491.

It is an arithmetic number, because the mean of its divisors is an integer number (13290792144).

Almost surely, 2^302130421540 is an apocalyptic number.

It is an amenable number.

302130421540 is an abundant number, since it is smaller than the sum of its proper divisors (335827601372).

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

302130421540 is a wasteful number, since it uses less digits than its factorization.

302130421540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72196 (or 72194 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 302130421540 its reverse (45124031203), we get a palindrome (347254452743).

The spelling of 302130421540 in words is "three hundred two billion, one hundred thirty million, four hundred twenty-one thousand, five hundred forty".