102101203 has 4 divisors (see below), whose sum is σ = 103112208. Its totient is φ = 101090200.

The previous prime is 102101191. The next prime is 102101213. The reversal of 102101203 is 302101201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102101203 - 2⁵ = 102101171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102101203.

It is not an unprimeable number, because it can be changed into a prime (102101213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505351 + ... + 505552.

It is an arithmetic number, because the mean of its divisors is an integer number (25778052).

Almost surely, 2^102101203 is an apocalyptic number.

102101203 is a deficient number, since it is larger than the sum of its proper divisors (1011005).

102101203 is a wasteful number, since it uses less digits than its factorization.

102101203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011004.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 102101203 is about 10104.5139912813. The cubic root of 102101203 is about 467.3873491048.

Adding to 102101203 its reverse (302101201), we get a palindrome (404202404).

The spelling of 102101203 in words is "one hundred two million, one hundred one thousand, two hundred three".