1202312103 has 4 divisors (see below), whose sum is σ = 1603082808. Its totient is φ = 801541400.

The previous prime is 1202312093. The next prime is 1202312107. The reversal of 1202312103 is 3012132021.

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 1202312103 - 2¹⁰ = 1202311079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202312107) 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, 200385348 + ... + 200385353.

It is an arithmetic number, because the mean of its divisors is an integer number (400770702).

Almost surely, 2^1202312103 is an apocalyptic number.

1202312103 is a deficient number, since it is larger than the sum of its proper divisors (400770705).

1202312103 is an equidigital number, since it uses as much as digits as its factorization.

1202312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400770704.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1202312103 is about 34674.3724240252. The cubic root of 1202312103 is about 1063.3406246709.

Adding to 1202312103 its reverse (3012132021), we get a palindrome (4214444124).

The spelling of 1202312103 in words is "one billion, two hundred two million, three hundred twelve thousand, one hundred three".