1121896603 has 4 divisors (see below), whose sum is σ = 1158086848. Its totient is φ = 1085706360.

The previous prime is 1121896583. The next prime is 1121896621. The reversal of 1121896603 is 3066981211.

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 1121896603 - 2¹⁷ = 1121765531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121896673) 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, 18095076 + ... + 18095137.

It is an arithmetic number, because the mean of its divisors is an integer number (289521712).

Almost surely, 2^1121896603 is an apocalyptic number.

1121896603 is a deficient number, since it is larger than the sum of its proper divisors (36190245).

1121896603 is an equidigital number, since it uses as much as digits as its factorization.

1121896603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36190244.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1121896603 is about 33494.7250026030. The cubic root of 1121896603 is about 1039.0846862158.

The spelling of 1121896603 in words is "one billion, one hundred twenty-one million, eight hundred ninety-six thousand, six hundred three".