1242230431 has 8 divisors (see below), whose sum is σ = 1408196720. Its totient is φ = 1086322752.

The previous prime is 1242230387. The next prime is 1242230447. The reversal of 1242230431 is 1340322421.

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

It is a cyclic number.

It is not a de Polignac number, because 1242230431 - 2²⁵ = 1208675999 is a prime.

It is a super-2 number, since 2×1242230431² = 3086272887404891522, 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 (1242230531) 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, 2514390 + ... + 2514883.

It is an arithmetic number, because the mean of its divisors is an integer number (176024590).

Almost surely, 2^1242230431 is an apocalyptic number.

1242230431 is a deficient number, since it is larger than the sum of its proper divisors (165966289).

1242230431 is a wasteful number, since it uses less digits than its factorization.

1242230431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029305.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1242230431 is about 35245.2894866818. The cubic root of 1242230431 is about 1074.9808342716.

Adding to 1242230431 its reverse (1340322421), we get a palindrome (2582552852).

The spelling of 1242230431 in words is "one billion, two hundred forty-two million, two hundred thirty thousand, four hundred thirty-one".