1123404242 has 8 divisors (see below), whose sum is σ = 1685499132. Its totient is φ = 561571200.

The previous prime is 1123404221. The next prime is 1123404259. The reversal of 1123404242 is 2424043211.

It can be written as a sum of positive squares in 2 ways, for example, as 1064129641 + 59274601 = 32621^2 + 7699^2 .

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

It is a super-3 number, since 3×1123404242³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54359 + ... + 72122.

Almost surely, 2^1123404242 is an apocalyptic number.

1123404242 is a deficient number, since it is larger than the sum of its proper divisors (562094890).

1123404242 is a wasteful number, since it uses less digits than its factorization.

1123404242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130924.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1123404242 is about 33517.2230651646. The cubic root of 1123404242 is about 1039.5499291458.

Adding to 1123404242 its reverse (2424043211), we get a palindrome (3547447453).

The spelling of 1123404242 in words is "one billion, one hundred twenty-three million, four hundred four thousand, two hundred forty-two".