230420421 has 72 divisors (see below), whose sum is σ = 422927232. Its totient is φ = 118324800.

The previous prime is 230420419. The next prime is 230420453. The reversal of 230420421 is 124024032.

It is not a de Polignac number, because 230420421 - 2¹ = 230420419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230420394 and 230420403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230420401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1272951 + ... + 1273131.

Almost surely, 2^230420421 is an apocalyptic number.

230420421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230420421 is a deficient number, since it is larger than the sum of its proper divisors (192506811).

230420421 is a wasteful number, since it uses less digits than its factorization.

230420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 230420421 is about 15179.6054296546. The cubic root of 230420421 is about 613.0656574225.

Adding to 230420421 its reverse (124024032), we get a palindrome (354444453).

The spelling of 230420421 in words is "two hundred thirty million, four hundred twenty thousand, four hundred twenty-one".