1123120342 has 8 divisors (see below), whose sum is σ = 1713234600. Its totient is φ = 552042144.

The previous prime is 1123120279. The next prime is 1123120357. The reversal of 1123120342 is 2430213211.

It is a happy number.

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

It is a super-2 number, since 2×1123120342² = 2522798605228393928, which contains 22 as substring.

It is a congruent number.

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, 4758867 + ... + 4759102.

It is an arithmetic number, because the mean of its divisors is an integer number (214154325).

Almost surely, 2^1123120342 is an apocalyptic number.

1123120342 is a deficient number, since it is larger than the sum of its proper divisors (590114258).

1123120342 is an equidigital number, since it uses as much as digits as its factorization.

1123120342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518030.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123120342 is about 33512.9876615022. The cubic root of 1123120342 is about 1039.4623521548.

Adding to 1123120342 its reverse (2430213211), we get a palindrome (3553333553).

The spelling of 1123120342 in words is "one billion, one hundred twenty-three million, one hundred twenty thousand, three hundred forty-two".