102331231 has 2 divisors, whose sum is σ = 102331232. Its totient is φ = 102331230.

The previous prime is 102331213. The next prime is 102331241. The reversal of 102331231 is 132133201.

Together with previous prime (102331213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102331231 - 2¹⁵ = 102298463 is a prime.

It is a super-2 number, since 2×102331231² = 20943361675950722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102331241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51165615 + 51165616.

It is an arithmetic number, because the mean of its divisors is an integer number (51165616).

Almost surely, 2^102331231 is an apocalyptic number.

102331231 is a deficient number, since it is larger than the sum of its proper divisors (1).

102331231 is an equidigital number, since it uses as much as digits as its factorization.

102331231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 102331231 is about 10115.8900251041. The cubic root of 102331231 is about 467.7380845691.

Adding to 102331231 its reverse (132133201), we get a palindrome (234464432).

The spelling of 102331231 in words is "one hundred two million, three hundred thirty-one thousand, two hundred thirty-one".