423342411021 has 6 divisors (see below), whose sum is σ = 611494593710. Its totient is φ = 282228274008.

The previous prime is 423342410977. The next prime is 423342411031. The reversal of 423342411021 is 120114243324.

423342411021 is a `hidden beast` number, since 4 + 233 + 424 + 1 + 1 + 0 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 286882356996 + 136460054025 = 535614^2 + 369405^2 .

It is not a de Polignac number, because 423342411021 - 2⁹ = 423342410509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423342411031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23519022826 + ... + 23519022843.

Almost surely, 2^423342411021 is an apocalyptic number.

It is an amenable number.

423342411021 is a deficient number, since it is larger than the sum of its proper divisors (188152182689).

423342411021 is a wasteful number, since it uses less digits than its factorization.

423342411021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47038045675 (or 47038045672 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 423342411021 its reverse (120114243324), we get a palindrome (543456654345).

The spelling of 423342411021 in words is "four hundred twenty-three billion, three hundred forty-two million, four hundred eleven thousand, twenty-one".