1202103 has 12 divisors (see below), whose sum is σ = 1984528. Its totient is φ = 686880.

The previous prime is 1202099. The next prime is 1202107. The reversal of 1202103 is 3012021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1202099) and next prime (1202107).

It is not a de Polignac number, because 1202103 - 2² = 1202099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

1202103 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202107) 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 11 ways as a sum of consecutive naturals, for example, 9478 + ... + 9603.

2^1202103 is an apocalyptic number.

1202103 is a deficient number, since it is larger than the sum of its proper divisors (782425).

1202103 is a wasteful number, since it uses less digits than its factorization.

1202103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19094 (or 19091 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1202103 is about 1096.4045786114. The cubic root of 1202103 is about 106.3278976616.

Adding to 1202103 its reverse (3012021), we get a palindrome (4214124).

The spelling of 1202103 in words is "one million, two hundred two thousand, one hundred three".