230312421 has 12 divisors (see below), whose sum is σ = 335968620. Its totient is φ = 152020800.

The previous prime is 230312389. The next prime is 230312431. The reversal of 230312421 is 124213032.

230312421 is a `hidden beast` number, since 230 + 3 + 12 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 119115396 + 111197025 = 10914^2 + 10545^2 .

It is not a de Polignac number, because 230312421 - 2⁵ = 230312389 is a prime.

It is a super-2 number, since 2×230312421² = 106087622533762482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 230312394 and 230312403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230312431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125776 + ... + 127593.

It is an arithmetic number, because the mean of its divisors is an integer number (27997385).

Almost surely, 2^230312421 is an apocalyptic number.

It is an amenable number.

230312421 is a deficient number, since it is larger than the sum of its proper divisors (105656199).

230312421 is a wasteful number, since it uses less digits than its factorization.

230312421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253476 (or 253473 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 230312421 is about 15176.0476079907. The cubic root of 230312421 is about 612.9698594344.

Adding to 230312421 its reverse (124213032), we get a palindrome (354525453).

It can be divided in two parts, 23031 and 2421, that added together give a palindrome (25452).

The spelling of 230312421 in words is "two hundred thirty million, three hundred twelve thousand, four hundred twenty-one".