1204022431 has 4 divisors (see below), whose sum is σ = 1204205472. Its totient is φ = 1203839392.

The previous prime is 1204022383. The next prime is 1204022437. The reversal of 1204022431 is 1342204021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1204022431 - 2⁹ = 1204021919 is a prime.

It is a super-2 number, since 2×1204022431² = 2899340028702299522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204022399 and 1204022408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204022437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81271 + ... + 94936.

It is an arithmetic number, because the mean of its divisors is an integer number (301051368).

Almost surely, 2^1204022431 is an apocalyptic number.

1204022431 is a deficient number, since it is larger than the sum of its proper divisors (183041).

1204022431 is an equidigital number, since it uses as much as digits as its factorization.

1204022431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183040.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1204022431 is about 34699.0263696260. The cubic root of 1204022431 is about 1063.8445979604.

Adding to 1204022431 its reverse (1342204021), we get a palindrome (2546226452).

The spelling of 1204022431 in words is "one billion, two hundred four million, twenty-two thousand, four hundred thirty-one".