231710421 has 8 divisors (see below), whose sum is σ = 309051904. Its totient is φ = 154421280.

The previous prime is 231710419. The next prime is 231710431. The reversal of 231710421 is 124017132.

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

It is not a de Polignac number, because 231710421 - 2¹ = 231710419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231710411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1216 + ... + 21561.

It is an arithmetic number, because the mean of its divisors is an integer number (38631488).

Almost surely, 2^231710421 is an apocalyptic number.

It is an amenable number.

231710421 is a deficient number, since it is larger than the sum of its proper divisors (77341483).

231710421 is a wasteful number, since it uses less digits than its factorization.

231710421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26171.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 231710421 is about 15222.0373472147. The cubic root of 231710421 is about 614.2076039728.

Adding to 231710421 its reverse (124017132), we get a palindrome (355727553).

The spelling of 231710421 in words is "two hundred thirty-one million, seven hundred ten thousand, four hundred twenty-one".