102040231 has 2 divisors, whose sum is σ = 102040232. Its totient is φ = 102040230.

The previous prime is 102040201. The next prime is 102040261. The reversal of 102040231 is 132040201.

It is a balanced prime because it is at equal distance from previous prime (102040201) and next prime (102040261).

It is an emirp because it is prime and its reverse (132040201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102040231 - 2¹⁹ = 101515943 is a prime.

It is a super-2 number, since 2×102040231² = 20824417485066722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102040201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51020115 + 51020116.

It is an arithmetic number, because the mean of its divisors is an integer number (51020116).

Almost surely, 2^102040231 is an apocalyptic number.

102040231 is a deficient number, since it is larger than the sum of its proper divisors (1).

102040231 is an equidigital number, since it uses as much as digits as its factorization.

102040231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102040231 is about 10101.4964732954. The cubic root of 102040231 is about 467.2942936685.

Adding to 102040231 its reverse (132040201), we get a palindrome (234080432).

The spelling of 102040231 in words is "one hundred two million, forty thousand, two hundred thirty-one".