143310431 has 8 divisors (see below), whose sum is σ = 161730000. Its totient is φ = 125789440.

The previous prime is 143310397. The next prime is 143310437. The reversal of 143310431 is 134013341.

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 143310431 - 2¹⁸ = 143048287 is a prime.

It is a super-2 number, since 2×143310431² = 41075759266811522, 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 (143310437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224306 + ... + 224943.

It is an arithmetic number, because the mean of its divisors is an integer number (20216250).

Almost surely, 2^143310431 is an apocalyptic number.

143310431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143310431 is a deficient number, since it is larger than the sum of its proper divisors (18419569).

143310431 is a wasteful number, since it uses less digits than its factorization.

143310431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449289.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 143310431 is about 11971.2334786354. The cubic root of 143310431 is about 523.3102814392.

Adding to 143310431 its reverse (134013341), we get a palindrome (277323772).

The spelling of 143310431 in words is "one hundred forty-three million, three hundred ten thousand, four hundred thirty-one".