2421323355506 has 32 divisors (see below), whose sum is σ = 4198272768000. Its totient is φ = 1035109958400.

The previous prime is 2421323355481. The next prime is 2421323355533. The reversal of 2421323355506 is 6055533231242.

It is a happy 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, 1827506 + ... + 2860493.

It is an arithmetic number, because the mean of its divisors is an integer number (131196024000).

Almost surely, 2^{2421323355506} is an apocalyptic number.

2421323355506 is a deficient number, since it is larger than the sum of its proper divisors (1776949412494).

2421323355506 is a wasteful number, since it uses less digits than its factorization.

2421323355506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689410.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 2421323355506 its reverse (6055533231242), we get a palindrome (8476856586748).

The spelling of 2421323355506 in words is "two trillion, four hundred twenty-one billion, three hundred twenty-three million, three hundred fifty-five thousand, five hundred six".