2421231015523 has 8 divisors (see below), whose sum is σ = 2422604570400. Its totient is φ = 2419857625920.

The previous prime is 2421231015481. The next prime is 2421231015571. The reversal of 2421231015523 is 3255101321242.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421231015523 - 2²¹ = 2421228918371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421231015323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39891703 + ... + 39952351.

It is an arithmetic number, because the mean of its divisors is an integer number (302825571300).

Almost surely, 2^{2421231015523} is an apocalyptic number.

2421231015523 is a deficient number, since it is larger than the sum of its proper divisors (1373554877).

2421231015523 is a wasteful number, since it uses less digits than its factorization.

2421231015523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82637.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2421231015523 its reverse (3255101321242), we get a palindrome (5676332336765).

The spelling of 2421231015523 in words is "two trillion, four hundred twenty-one billion, two hundred thirty-one million, fifteen thousand, five hundred twenty-three".