1204311042 has 48 divisors (see below), whose sum is σ = 3014006112. Its totient is φ = 343474560.

The previous prime is 1204311041. The next prime is 1204311049. The reversal of 1204311042 is 2401134021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1204311041) 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 23 ways as a sum of consecutive naturals, for example, 175528 + ... + 182259.

It is an arithmetic number, because the mean of its divisors is an integer number (62791794).

Almost surely, 2^1204311042 is an apocalyptic number.

1204311042 is an abundant number, since it is smaller than the sum of its proper divisors (1809695070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1204311042 is a wasteful number, since it uses less digits than its factorization.

1204311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357823 (or 357820 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1204311042 is about 34703.1848970667. The cubic root of 1204311042 is about 1063.9295943624.

Adding to 1204311042 its reverse (2401134021), we get a palindrome (3605445063).

The spelling of 1204311042 in words is "one billion, two hundred four million, three hundred eleven thousand, forty-two".