102356231 has 4 divisors (see below), whose sum is σ = 104034264. Its totient is φ = 100678200.

The previous prime is 102356159. The next prime is 102356237. The reversal of 102356231 is 132653201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132653201 = 199 ⋅666599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102356231 is a prime.

It is a super-2 number, since 2×102356231² = 20953596049050722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102356197 and 102356206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102356237) 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, 838925 + ... + 839046.

It is an arithmetic number, because the mean of its divisors is an integer number (26008566).

Almost surely, 2^102356231 is an apocalyptic number.

102356231 is a deficient number, since it is larger than the sum of its proper divisors (1678033).

102356231 is an equidigital number, since it uses as much as digits as its factorization.

102356231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678032.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 102356231 is about 10117.1256293475. The cubic root of 102356231 is about 467.7761716708.

The spelling of 102356231 in words is "one hundred two million, three hundred fifty-six thousand, two hundred thirty-one".