1121245342 has 12 divisors (see below), whose sum is σ = 1956458880. Its totient is φ = 480533676.

The previous prime is 1121245337. The next prime is 1121245379. The reversal of 1121245342 is 2435421211.

It is a super-2 number, since 2×1121245342² = 2514382233913393928, 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 5 ways as a sum of consecutive naturals, for example, 5720542 + ... + 5720737.

It is an arithmetic number, because the mean of its divisors is an integer number (163038240).

Almost surely, 2^1121245342 is an apocalyptic number.

1121245342 is a deficient number, since it is larger than the sum of its proper divisors (835213538).

1121245342 is a wasteful number, since it uses less digits than its factorization.

1121245342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11441295 (or 11441288 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1121245342 is about 33485.0017470509. The cubic root of 1121245342 is about 1038.8835844040.

Adding to 1121245342 its reverse (2435421211), we get a palindrome (3556666553).

The spelling of 1121245342 in words is "one billion, one hundred twenty-one million, two hundred forty-five thousand, three hundred forty-two".