42120726143 has 4 divisors (see below), whose sum is σ = 42121137240. Its totient is φ = 42120315048.

The previous prime is 42120726121. The next prime is 42120726149. The reversal of 42120726143 is 34162702124.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42120726143 - 2¹⁶ = 42120660607 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 (42120726149) 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, 85721 + ... + 302637.

It is an arithmetic number, because the mean of its divisors is an integer number (10530284310).

Almost surely, 2^42120726143 is an apocalyptic number.

42120726143 is a deficient number, since it is larger than the sum of its proper divisors (411097).

42120726143 is a wasteful number, since it uses less digits than its factorization.

42120726143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411096.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 42120726143 in words is "forty-two billion, one hundred twenty million, seven hundred twenty-six thousand, one hundred forty-three".