1231004204 has 12 divisors (see below), whose sum is σ = 2280978504. Its totient is φ = 579296064.

The previous prime is 1231004197. The next prime is 1231004207. The reversal of 1231004204 is 4024001321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1231004207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9051434 + ... + 9051569.

It is an arithmetic number, because the mean of its divisors is an integer number (190081542).

Almost surely, 2^1231004204 is an apocalyptic number.

It is an amenable number.

1231004204 is a deficient number, since it is larger than the sum of its proper divisors (1049974300).

1231004204 is a wasteful number, since it uses less digits than its factorization.

1231004204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18103024 (or 18103022 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1231004204 is about 35085.6694962487. The cubic root of 1231004204 is about 1071.7327745503.

Adding to 1231004204 its reverse (4024001321), we get a palindrome (5255005525).

The spelling of 1231004204 in words is "one billion, two hundred thirty-one million, four thousand, two hundred four".