1121323406 has 32 divisors (see below), whose sum is σ = 1992771072. Its totient is φ = 463186080.

The previous prime is 1121323403. The next prime is 1121323421. The reversal of 1121323406 is 6043231211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121323403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45311 + ... + 65541.

It is an arithmetic number, because the mean of its divisors is an integer number (62274096).

Almost surely, 2^1121323406 is an apocalyptic number.

1121323406 is a deficient number, since it is larger than the sum of its proper divisors (871447666).

1121323406 is a wasteful number, since it uses less digits than its factorization.

1121323406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20384.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1121323406 is about 33486.1673829658. The cubic root of 1121323406 is about 1038.9076937650.

Adding to 1121323406 its reverse (6043231211), we get a palindrome (7164554617).

The spelling of 1121323406 in words is "one billion, one hundred twenty-one million, three hundred twenty-three thousand, four hundred six".