1211103103323 has 8 divisors (see below), whose sum is σ = 1709792616528. Its totient is φ = 759907829504.

The previous prime is 1211103103279. The next prime is 1211103103339. The reversal of 1211103103323 is 3233013011121.

It is a happy number.

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 1211103103323 - 2¹⁰ = 1211103102299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211103103323.

It is not an unprimeable number, because it can be changed into a prime (1211103103423) 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, 11873559786 + ... + 11873559887.

It is an arithmetic number, because the mean of its divisors is an integer number (213724077066).

Almost surely, 2^{1211103103323} is an apocalyptic number.

1211103103323 is a deficient number, since it is larger than the sum of its proper divisors (498689513205).

1211103103323 is a wasteful number, since it uses less digits than its factorization.

1211103103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23747119693.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1211103103323 its reverse (3233013011121), we get a palindrome (4444116114444).

The spelling of 1211103103323 in words is "one trillion, two hundred eleven billion, one hundred three million, one hundred three thousand, three hundred twenty-three".