102403231 has 16 divisors (see below), whose sum is σ = 118540800. Its totient is φ = 86652000.

The previous prime is 102403219. The next prime is 102403241. The reversal of 102403231 is 132304201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102403231 - 2⁹ = 102402719 is a prime.

It is a super-2 number, since 2×102403231² = 20972843438478722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102403241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293245 + ... + 293593.

It is an arithmetic number, because the mean of its divisors is an integer number (7408800).

Almost surely, 2^102403231 is an apocalyptic number.

102403231 is a deficient number, since it is larger than the sum of its proper divisors (16137569).

102403231 is a wasteful number, since it uses less digits than its factorization.

102403231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

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

The square root of 102403231 is about 10119.4481568908. The cubic root of 102403231 is about 467.8477586359.

Adding to 102403231 its reverse (132304201), we get a palindrome (234707432).

The spelling of 102403231 in words is "one hundred two million, four hundred three thousand, two hundred thirty-one".