42043340241503 has 4 divisors (see below), whose sum is σ = 42049839450360. Its totient is φ = 42036841032648.

The previous prime is 42043340241433. The next prime is 42043340241509. The reversal of 42043340241503 is 30514204334024.

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

It is a cyclic number.

It is not a de Polignac number, because 42043340241503 - 2⁸ = 42043340241247 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 (42043340241509) 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, 3249594725 + ... + 3249607662.

It is an arithmetic number, because the mean of its divisors is an integer number (10512459862590).

Almost surely, 2^{42043340241503} is an apocalyptic number.

42043340241503 is a deficient number, since it is larger than the sum of its proper divisors (6499208857).

42043340241503 is an equidigital number, since it uses as much as digits as its factorization.

42043340241503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6499208856.

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 42043340241503 its reverse (30514204334024), we get a palindrome (72557544575527).

The spelling of 42043340241503 in words is "forty-two trillion, forty-three billion, three hundred forty million, two hundred forty-one thousand, five hundred three".