42235033231 has 4 divisors (see below), whose sum is σ = 42247655352. Its totient is φ = 42222411112.

The previous prime is 42235033219. The next prime is 42235033261. The reversal of 42235033231 is 13233053224.

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 42235033231 - 2⁷ = 42235033103 is a prime.

It is a super-2 number, since 2×42235033231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42235033231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42235033261) 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, 6306040 + ... + 6312733.

It is an arithmetic number, because the mean of its divisors is an integer number (10561913838).

Almost surely, 2^42235033231 is an apocalyptic number.

42235033231 is a deficient number, since it is larger than the sum of its proper divisors (12622121).

42235033231 is a wasteful number, since it uses less digits than its factorization.

42235033231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12622120.

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 42235033231 its reverse (13233053224), we get a palindrome (55468086455).

The spelling of 42235033231 in words is "forty-two billion, two hundred thirty-five million, thirty-three thousand, two hundred thirty-one".