1213203104103 has 8 divisors (see below), whose sum is σ = 1617610908528. Its totient is φ = 808798684544.

The previous prime is 1213203104083. The next prime is 1213203104123. The reversal of 1213203104103 is 3014013023121.

It is an interprime number because it is at equal distance from previous prime (1213203104083) and next prime (1213203104123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213203104103 - 2¹³ = 1213203095911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213203104103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213203104123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161551 + ... + 1566047.

It is an arithmetic number, because the mean of its divisors is an integer number (202201363566).

Almost surely, 2^{1213203104103} is an apocalyptic number.

1213203104103 is a deficient number, since it is larger than the sum of its proper divisors (404407804425).

1213203104103 is a wasteful number, since it uses less digits than its factorization.

1213203104103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692433.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213203104103 its reverse (3014013023121), we get a palindrome (4227216127224).

The spelling of 1213203104103 in words is "one trillion, two hundred thirteen billion, two hundred three million, one hundred four thousand, one hundred three".