1121404123 has 8 divisors (see below), whose sum is σ = 1337326848. Its totient is φ = 919411944.

The previous prime is 1121404121. The next prime is 1121404171. The reversal of 1121404123 is 3214041211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121404123 - 2¹ = 1121404121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121404123.

It is not an unprimeable number, because it can be changed into a prime (1121404121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3482461 + ... + 3482782.

It is an arithmetic number, because the mean of its divisors is an integer number (167165856).

Almost surely, 2^1121404123 is an apocalyptic number.

1121404123 is a deficient number, since it is larger than the sum of its proper divisors (215922725).

1121404123 is an equidigital number, since it uses as much as digits as its factorization.

1121404123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6965273.

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

The square root of 1121404123 is about 33487.3725902765. The cubic root of 1121404123 is about 1038.9326213044.

Adding to 1121404123 its reverse (3214041211), we get a palindrome (4335445334).

The spelling of 1121404123 in words is "one billion, one hundred twenty-one million, four hundred four thousand, one hundred twenty-three".