143012431 has 2 divisors, whose sum is σ = 143012432. Its totient is φ = 143012430.

The previous prime is 143012423. The next prime is 143012473. The reversal of 143012431 is 134210341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143012431 - 2³ = 143012423 is a prime.

It is a super-2 number, since 2×143012431² = 40905110841059522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 143012399 and 143012408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143012131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71506215 + 71506216.

It is an arithmetic number, because the mean of its divisors is an integer number (71506216).

Almost surely, 2^143012431 is an apocalyptic number.

143012431 is a deficient number, since it is larger than the sum of its proper divisors (1).

143012431 is an equidigital number, since it uses as much as digits as its factorization.

143012431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143012431 is about 11958.7804980274. The cubic root of 143012431 is about 522.9473055794.

Adding to 143012431 its reverse (134210341), we get a palindrome (277222772).

It can be divided in two parts, 1430 and 12431, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 143012431 in words is "one hundred forty-three million, twelve thousand, four hundred thirty-one".