1530203334420 has 48 divisors (see below), whose sum is σ = 4308505508160. Its totient is φ = 405774587136.

The previous prime is 1530203334371. The next prime is 1530203334437. The reversal of 1530203334420 is 244333020351.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71227777 + ... + 71249256.

It is an arithmetic number, because the mean of its divisors is an integer number (89760531420).

Almost surely, 2^{1530203334420} is an apocalyptic number.

1530203334420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530203334420 is an abundant number, since it is smaller than the sum of its proper divisors (2778302173740).

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

1530203334420 is a wasteful number, since it uses less digits than its factorization.

1530203334420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142477224 (or 142477222 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 1530203334420 its reverse (244333020351), we get a palindrome (1774536354771).

The spelling of 1530203334420 in words is "one trillion, five hundred thirty billion, two hundred three million, three hundred thirty-four thousand, four hundred twenty".