2401543021530 has 128 divisors (see below), whose sum is σ = 6076557146880. Its totient is φ = 606834063360.

The previous prime is 2401543021459. The next prime is 2401543021583. The reversal of 2401543021530 is 351203451042.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5535336 + ... + 5953404.

It is an arithmetic number, because the mean of its divisors is an integer number (47473102710).

Almost surely, 2^{2401543021530} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2401543021530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3038278573440).

2401543021530 is an abundant number, since it is smaller than the sum of its proper divisors (3675014125350).

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

2401543021530 is a wasteful number, since it uses less digits than its factorization.

2401543021530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418256.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 2401543021530 its reverse (351203451042), we get a palindrome (2752746472572).

The spelling of 2401543021530 in words is "two trillion, four hundred one billion, five hundred forty-three million, twenty-one thousand, five hundred thirty".