143430330431 has 4 divisors (see below), whose sum is σ = 145395129552. Its totient is φ = 141465531312.

The previous prime is 143430330409. The next prime is 143430330451. The reversal of 143430330431 is 134033034341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143430330431 is a prime.

It is a super-2 number, since 2×143430330431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143430330394 and 143430330403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143430330401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982399451 + ... + 982399596.

It is an arithmetic number, because the mean of its divisors is an integer number (36348782388).

Almost surely, 2^143430330431 is an apocalyptic number.

143430330431 is a deficient number, since it is larger than the sum of its proper divisors (1964799121).

143430330431 is an equidigital number, since it uses as much as digits as its factorization.

143430330431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964799120.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 143430330431 its reverse (134033034341), we get a palindrome (277463364772).

The spelling of 143430330431 in words is "one hundred forty-three billion, four hundred thirty million, three hundred thirty thousand, four hundred thirty-one".