42143023 has 6 divisors (see below), whose sum is σ = 45634344. Its totient is φ = 38901096.

The previous prime is 42142987. The next prime is 42143027. The reversal of 42143023 is 32034124.

It is not a de Polignac number, because 42143023 - 2⁹ = 42142511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124515 + ... + 124852.

It is an arithmetic number, because the mean of its divisors is an integer number (7605724).

Almost surely, 2^42143023 is an apocalyptic number.

42143023 is a deficient number, since it is larger than the sum of its proper divisors (3491321).

42143023 is a wasteful number, since it uses less digits than its factorization.

42143023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249393 (or 249380 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 42143023 is about 6491.7657844380. The cubic root of 42143023 is about 347.9967823501.

Adding to 42143023 its reverse (32034124), we get a palindrome (74177147).

It can be divided in two parts, 4214302 and 3, that multiplied together give a triangular number (12642906 = T₅₀₂₈).

The spelling of 42143023 in words is "forty-two million, one hundred forty-three thousand, twenty-three".