1204120231 has 8 divisors (see below), whose sum is σ = 1269121280. Its totient is φ = 1139281848.

The previous prime is 1204120201. The next prime is 1204120237. The reversal of 1204120231 is 1320214021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204120231 is a prime.

It is a super-2 number, since 2×1204120231² = 2899811061406986722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204120237) 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 7 ways as a sum of consecutive naturals, for example, 25311 + ... + 55216.

It is an arithmetic number, because the mean of its divisors is an integer number (158640160).

Almost surely, 2^1204120231 is an apocalyptic number.

1204120231 is a deficient number, since it is larger than the sum of its proper divisors (65001049).

1204120231 is an equidigital number, since it uses as much as digits as its factorization.

1204120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81333.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1204120231 is about 34700.4356024532. The cubic root of 1204120231 is about 1063.8734017384.

Adding to 1204120231 its reverse (1320214021), we get a palindrome (2524334252).

The spelling of 1204120231 in words is "one billion, two hundred four million, one hundred twenty thousand, two hundred thirty-one".