101205003 has 4 divisors (see below), whose sum is σ = 134940008. Its totient is φ = 67470000.

The previous prime is 101204993. The next prime is 101205011. The reversal of 101205003 is 300502101.

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

It is not a de Polignac number, because 101205003 - 2¹⁸ = 100942859 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 101205003.

It is not an unprimeable number, because it can be changed into a prime (101205023) 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, 16867498 + ... + 16867503.

It is an arithmetic number, because the mean of its divisors is an integer number (33735002).

Almost surely, 2^101205003 is an apocalyptic number.

101205003 is a deficient number, since it is larger than the sum of its proper divisors (33735005).

101205003 is an equidigital number, since it uses as much as digits as its factorization.

101205003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33735004.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 101205003 is about 10060.0697313687. The cubic root of 101205003 is about 466.0158206544.

Adding to 101205003 its reverse (300502101), we get a palindrome (401707104).

The spelling of 101205003 in words is "one hundred one million, two hundred five thousand, three".