1204431101 has 4 divisors (see below), whose sum is σ = 1207902432. Its totient is φ = 1200959772.

The previous prime is 1204431097. The next prime is 1204431119. The reversal of 1204431101 is 1011344021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1204431101 - 2² = 1204431097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204431101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204431121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1735145 + ... + 1735838.

It is an arithmetic number, because the mean of its divisors is an integer number (301975608).

Almost surely, 2^1204431101 is an apocalyptic number.

It is an amenable number.

1204431101 is a deficient number, since it is larger than the sum of its proper divisors (3471331).

1204431101 is an equidigital number, since it uses as much as digits as its factorization.

1204431101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471330.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1204431101 is about 34704.9146519625. The cubic root of 1204431101 is about 1063.9649479309.

Adding to 1204431101 its reverse (1011344021), we get a palindrome (2215775122).

The spelling of 1204431101 in words is "one billion, two hundred four million, four hundred thirty-one thousand, one hundred one".