1431200243 has 32 divisors (see below), whose sum is σ = 1646023680. Its totient is φ = 1232800000.

The previous prime is 1431200237. The next prime is 1431200249. The reversal of 1431200243 is 3420021341.

It is an interprime number because it is at equal distance from previous prime (1431200237) and next prime (1431200249).

It is a cyclic number.

It is not a de Polignac number, because 1431200243 - 2⁴ = 1431200227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431200249) 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 31 ways as a sum of consecutive naturals, for example, 5320313 + ... + 5320581.

It is an arithmetic number, because the mean of its divisors is an integer number (51438240).

Almost surely, 2^1431200243 is an apocalyptic number.

1431200243 is a deficient number, since it is larger than the sum of its proper divisors (214823437).

1431200243 is a wasteful number, since it uses less digits than its factorization.

1431200243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1431200243 is about 37831.2072633164. The cubic root of 1431200243 is about 1126.9382863534.

Adding to 1431200243 its reverse (3420021341), we get a palindrome (4851221584).

The spelling of 1431200243 in words is "one billion, four hundred thirty-one million, two hundred thousand, two hundred forty-three".