1121420404103 has 4 divisors (see below), whose sum is σ = 1160090073240. Its totient is φ = 1082750734968.

The previous prime is 1121420404081. The next prime is 1121420404123. The reversal of 1121420404103 is 3014040241211.

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 1121420404103 - 2¹⁴ = 1121420387719 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 (1121420404123) 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, 19334834525 + ... + 19334834582.

It is an arithmetic number, because the mean of its divisors is an integer number (290022518310).

Almost surely, 2^{1121420404103} is an apocalyptic number.

1121420404103 is a deficient number, since it is larger than the sum of its proper divisors (38669669137).

1121420404103 is an equidigital number, since it uses as much as digits as its factorization.

1121420404103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38669669136.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1121420404103 its reverse (3014040241211), we get a palindrome (4135460645314).

The spelling of 1121420404103 in words is "one trillion, one hundred twenty-one billion, four hundred twenty million, four hundred four thousand, one hundred three".