1211200210103 has 4 divisors (see below), whose sum is σ = 1304369457048. Its totient is φ = 1118030963160.

The previous prime is 1211200210069. The next prime is 1211200210117. The reversal of 1211200210103 is 3010120021121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211200210103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211200218103) 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, 46584623453 + ... + 46584623478.

It is an arithmetic number, because the mean of its divisors is an integer number (326092364262).

Almost surely, 2^{1211200210103} is an apocalyptic number.

1211200210103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1211200210103 is a deficient number, since it is larger than the sum of its proper divisors (93169246945).

1211200210103 is an equidigital number, since it uses as much as digits as its factorization.

1211200210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93169246944.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1211200210103 its reverse (3010120021121), we get a palindrome (4221320231224).

The spelling of 1211200210103 in words is "one trillion, two hundred eleven billion, two hundred million, two hundred ten thousand, one hundred three".