423211123421 has 8 divisors (see below), whose sum is σ = 441637690560. Its totient is φ = 404786729952.

The previous prime is 423211123393. The next prime is 423211123429. The reversal of 423211123421 is 124321112324.

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 423211123421 - 2³⁰ = 422137381597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423211123429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139136 + ... + 930473.

It is an arithmetic number, because the mean of its divisors is an integer number (55204711320).

Almost surely, 2^423211123421 is an apocalyptic number.

It is an amenable number.

423211123421 is a deficient number, since it is larger than the sum of its proper divisors (18426567139).

423211123421 is a wasteful number, since it uses less digits than its factorization.

423211123421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086835.

The product of its digits is 2304, while the sum is 26.

Adding to 423211123421 its reverse (124321112324), we get a palindrome (547532235745).

The spelling of 423211123421 in words is "four hundred twenty-three billion, two hundred eleven million, one hundred twenty-three thousand, four hundred twenty-one".