11122420403 has 4 divisors (see below), whose sum is σ = 11123027280. Its totient is φ = 11121813528.

The previous prime is 11122420399. The next prime is 11122420429. The reversal of 11122420403 is 30402422111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30402422111 = 164477 ⋅184843.

It is a cyclic number.

It is not a de Polignac number, because 11122420403 - 2² = 11122420399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122420453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275063 + ... + 312896.

It is an arithmetic number, because the mean of its divisors is an integer number (2780756820).

Almost surely, 2^11122420403 is an apocalyptic number.

11122420403 is a deficient number, since it is larger than the sum of its proper divisors (606877).

11122420403 is an equidigital number, since it uses as much as digits as its factorization.

11122420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606876.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11122420403 its reverse (30402422111), we get a palindrome (41524842514).

The spelling of 11122420403 in words is "eleven billion, one hundred twenty-two million, four hundred twenty thousand, four hundred three".