423313031421 has 48 divisors (see below), whose sum is σ = 732295025280. Its totient is φ = 236746264320.

The previous prime is 423313031399. The next prime is 423313031461. The reversal of 423313031421 is 124130313324.

It is a happy number.

423313031421 is a `hidden beast` number, since 4 + 2 + 331 + 303 + 1 + 4 + 21 = 666.

It is not a de Polignac number, because 423313031421 - 2¹⁷ = 423312900349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313031461) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89460 + ... + 924461.

It is an arithmetic number, because the mean of its divisors is an integer number (15256146360).

Almost surely, 2^423313031421 is an apocalyptic number.

It is an amenable number.

423313031421 is a deficient number, since it is larger than the sum of its proper divisors (308981993859).

423313031421 is a wasteful number, since it uses less digits than its factorization.

423313031421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014031 (or 1013978 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 423313031421 its reverse (124130313324), we get a palindrome (547443344745).

The spelling of 423313031421 in words is "four hundred twenty-three billion, three hundred thirteen million, thirty-one thousand, four hundred twenty-one".