42010231 has 4 divisors (see below), whose sum is σ = 42065352. Its totient is φ = 41955112.

The previous prime is 42010223. The next prime is 42010237. The reversal of 42010231 is 13201024.

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 42010231 - 2³ = 42010223 is a prime.

It is a super-2 number, since 2×42010231² = 3529719017346722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42010237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26401 + ... + 27946.

It is an arithmetic number, because the mean of its divisors is an integer number (10516338).

Almost surely, 2^42010231 is an apocalyptic number.

42010231 is a deficient number, since it is larger than the sum of its proper divisors (55121).

42010231 is an equidigital number, since it uses as much as digits as its factorization.

42010231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55120.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 42010231 is about 6481.5299891307. The cubic root of 42010231 is about 347.6308869818.

Adding to 42010231 its reverse (13201024), we get a palindrome (55211255).

It can be divided in two parts, 4201023 and 1, that added together give a palindrome (4201024).

The spelling of 42010231 in words is "forty-two million, ten thousand, two hundred thirty-one".