42235143032155 has 4 divisors (see below), whose sum is σ = 50682171638592. Its totient is φ = 33788114425720.

The previous prime is 42235143032107. The next prime is 42235143032219. The reversal of 42235143032155 is 55123034153224.

42235143032155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42235143032155 - 2⁴³ = 33439050009947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4223514303211 + ... + 4223514303220.

It is an arithmetic number, because the mean of its divisors is an integer number (12670542909648).

Almost surely, 2^{42235143032155} is an apocalyptic number.

42235143032155 is a deficient number, since it is larger than the sum of its proper divisors (8447028606437).

42235143032155 is an equidigital number, since it uses as much as digits as its factorization.

42235143032155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8447028606436.

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 42235143032155 its reverse (55123034153224), we get a palindrome (97358177185379).

The spelling of 42235143032155 in words is "forty-two trillion, two hundred thirty-five billion, one hundred forty-three million, thirty-two thousand, one hundred fifty-five".