230216431 has 4 divisors (see below), whose sum is σ = 243758592. Its totient is φ = 216674272.

The previous prime is 230216423. The next prime is 230216443. The reversal of 230216431 is 134612032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 230216431 - 2³ = 230216423 is a prime.

It is a super-2 number, since 2×230216431² = 105999210204755522, 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 (230216401) 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, 6771055 + ... + 6771088.

It is an arithmetic number, because the mean of its divisors is an integer number (60939648).

Almost surely, 2^230216431 is an apocalyptic number.

230216431 is a deficient number, since it is larger than the sum of its proper divisors (13542161).

230216431 is a wasteful number, since it uses less digits than its factorization.

230216431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13542160.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 230216431 is about 15172.8847290158. The cubic root of 230216431 is about 612.8846893962.

Adding to 230216431 its reverse (134612032), we get a palindrome (364828463).

The spelling of 230216431 in words is "two hundred thirty million, two hundred sixteen thousand, four hundred thirty-one".