1121214403 has 4 divisors (see below), whose sum is σ = 1123366968. Its totient is φ = 1119061840.

The previous prime is 1121214397. The next prime is 1121214461. The reversal of 1121214403 is 3044121211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3044121211 = 5569 ⋅546619.

It is a cyclic number.

It is not a de Polignac number, because 1121214403 - 2⁵ = 1121214371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121214103) 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, 1075501 + ... + 1076542.

It is an arithmetic number, because the mean of its divisors is an integer number (280841742).

Almost surely, 2^1121214403 is an apocalyptic number.

1121214403 is a deficient number, since it is larger than the sum of its proper divisors (2152565).

1121214403 is an equidigital number, since it uses as much as digits as its factorization.

1121214403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152564.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1121214403 is about 33484.5397609106. The cubic root of 1121214403 is about 1038.8740288638.

Adding to 1121214403 its reverse (3044121211), we get a palindrome (4165335614).

The spelling of 1121214403 in words is "one billion, one hundred twenty-one million, two hundred fourteen thousand, four hundred three".