230511421 has 4 divisors (see below), whose sum is σ = 263441632. Its totient is φ = 197581212.

The previous prime is 230511419. The next prime is 230511427. The reversal of 230511421 is 124115032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230511421 - 2¹ = 230511419 is a prime.

It is a super-2 number, since 2×230511421² = 106271030422878482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230511427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16465095 + ... + 16465108.

It is an arithmetic number, because the mean of its divisors is an integer number (65860408).

Almost surely, 2^230511421 is an apocalyptic number.

It is an amenable number.

230511421 is a deficient number, since it is larger than the sum of its proper divisors (32930211).

230511421 is an equidigital number, since it uses as much as digits as its factorization.

230511421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32930210.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 230511421 is about 15182.6025766336. The cubic root of 230511421 is about 613.1463528631.

Adding to 230511421 its reverse (124115032), we get a palindrome (354626453).

The spelling of 230511421 in words is "two hundred thirty million, five hundred eleven thousand, four hundred twenty-one".