102340231 has 4 divisors (see below), whose sum is σ = 116960272. Its totient is φ = 87720192.

The previous prime is 102340211. The next prime is 102340237. The reversal of 102340231 is 132043201.

It is a happy number.

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

It is not a de Polignac number, because 102340231 - 2¹⁹ = 101815943 is a prime.

It is a super-2 number, since 2×102340231² = 20947045762266722, 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 (102340237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7310010 + ... + 7310023.

It is an arithmetic number, because the mean of its divisors is an integer number (29240068).

Almost surely, 2^102340231 is an apocalyptic number.

102340231 is a deficient number, since it is larger than the sum of its proper divisors (14620041).

102340231 is an equidigital number, since it uses as much as digits as its factorization.

102340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14620040.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102340231 is about 10116.3348600172. The cubic root of 102340231 is about 467.7517966402.

Adding to 102340231 its reverse (132043201), we get a palindrome (234383432).

The spelling of 102340231 in words is "one hundred two million, three hundred forty thousand, two hundred thirty-one".