421123243313 has 32 divisors (see below), whose sum is σ = 489954873600. Its totient is φ = 359029794816.

The previous prime is 421123243291. The next prime is 421123243339. The reversal of 421123243313 is 313342321124.

It is a cyclic number.

It is not a de Polignac number, because 421123243313 - 2¹² = 421123239217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421123243213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23087645 + ... + 23105877.

It is an arithmetic number, because the mean of its divisors is an integer number (15311089800).

Almost surely, 2^421123243313 is an apocalyptic number.

It is an amenable number.

421123243313 is a deficient number, since it is larger than the sum of its proper divisors (68831630287).

421123243313 is a wasteful number, since it uses less digits than its factorization.

421123243313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21401.

The product of its digits is 10368, while the sum is 29.

Adding to 421123243313 its reverse (313342321124), we get a palindrome (734465564437).

The spelling of 421123243313 in words is "four hundred twenty-one billion, one hundred twenty-three million, two hundred forty-three thousand, three hundred thirteen".