1231222104403 has 4 divisors (see below), whose sum is σ = 1231279716040. Its totient is φ = 1231164492768.

The previous prime is 1231222104377. The next prime is 1231222104443. The reversal of 1231222104403 is 3044012221321.

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 1231222104403 - 2²⁵ = 1231188549971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231222104443) 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, 28773750 + ... + 28816507.

It is an arithmetic number, because the mean of its divisors is an integer number (307819929010).

Almost surely, 2^{1231222104403} is an apocalyptic number.

1231222104403 is a deficient number, since it is larger than the sum of its proper divisors (57611637).

1231222104403 is an equidigital number, since it uses as much as digits as its factorization.

1231222104403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57611636.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1231222104403 its reverse (3044012221321), we get a palindrome (4275234325724).

The spelling of 1231222104403 in words is "one trillion, two hundred thirty-one billion, two hundred twenty-two million, one hundred four thousand, four hundred three".