1113121042 has 32 divisors (see below), whose sum is σ = 1938945600. Its totient is φ = 473932800.

The previous prime is 1113121033. The next prime is 1113121043. The reversal of 1113121042 is 2401213111.

It is not an unprimeable number, because it can be changed into a prime (1113121043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22242 + ... + 52162.

It is an arithmetic number, because the mean of its divisors is an integer number (60592050).

Almost surely, 2^1113121042 is an apocalyptic number.

1113121042 is a deficient number, since it is larger than the sum of its proper divisors (825824558).

1113121042 is a wasteful number, since it uses less digits than its factorization.

1113121042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30042.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1113121042 is about 33363.4686745848. The cubic root of 1113121042 is about 1036.3683247085.

Adding to 1113121042 its reverse (2401213111), we get a palindrome (3514334153).

The spelling of 1113121042 in words is "one billion, one hundred thirteen million, one hundred twenty-one thousand, forty-two".