102531803 has 4 divisors (see below), whose sum is σ = 111852888. Its totient is φ = 93210720.

The previous prime is 102531797. The next prime is 102531841. The reversal of 102531803 is 308135201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308135201 = 11 ⋅28012291.

It is a cyclic number.

It is not a de Polignac number, because 102531803 - 2⁸ = 102531547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102531853) 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, 4660526 + ... + 4660547.

It is an arithmetic number, because the mean of its divisors is an integer number (27963222).

Almost surely, 2^102531803 is an apocalyptic number.

102531803 is a deficient number, since it is larger than the sum of its proper divisors (9321085).

102531803 is an equidigital number, since it uses as much as digits as its factorization.

102531803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9321084.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 102531803 is about 10125.7988820636. The cubic root of 102531803 is about 468.0434782579.

The spelling of 102531803 in words is "one hundred two million, five hundred thirty-one thousand, eight hundred three".