421124523 has 8 divisors (see below), whose sum is σ = 561979536. Its totient is φ = 280509600.

The previous prime is 421124519. The next prime is 421124533. The reversal of 421124523 is 325421124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421124523 - 2² = 421124519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421124493 and 421124502.

It is not an unprimeable number, because it can be changed into a prime (421124533) 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, 55888 + ... + 62973.

It is an arithmetic number, because the mean of its divisors is an integer number (70247442).

Almost surely, 2^421124523 is an apocalyptic number.

421124523 is a deficient number, since it is larger than the sum of its proper divisors (140855013).

421124523 is a wasteful number, since it uses less digits than its factorization.

421124523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120045.

The product of its digits is 1920, while the sum is 24.

The square root of 421124523 is about 20521.3187441743. The cubic root of 421124523 is about 749.5550089184. Note that the first 3 decimals are identical.

Adding to 421124523 its reverse (325421124), we get a palindrome (746545647).

The spelling of 421124523 in words is "four hundred twenty-one million, one hundred twenty-four thousand, five hundred twenty-three".