102512203 has 4 divisors (see below), whose sum is σ = 102862368. Its totient is φ = 102162040.

The previous prime is 102512191. The next prime is 102512209. The reversal of 102512203 is 302215201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302215201 = 83 ⋅3641147.

It is a cyclic number.

It is not a de Polignac number, because 102512203 - 2⁹ = 102511691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102512209) 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, 174643 + ... + 175228.

It is an arithmetic number, because the mean of its divisors is an integer number (25715592).

Almost surely, 2^102512203 is an apocalyptic number.

102512203 is a deficient number, since it is larger than the sum of its proper divisors (350165).

102512203 is an equidigital number, since it uses as much as digits as its factorization.

102512203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350164.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 102512203 is about 10124.8310109354. The cubic root of 102512203 is about 468.0136525956.

Adding to 102512203 its reverse (302215201), we get a palindrome (404727404).

The spelling of 102512203 in words is "one hundred two million, five hundred twelve thousand, two hundred three".