42233131 has 4 divisors (see below), whose sum is σ = 42486192. Its totient is φ = 41980072.

The previous prime is 42233101. The next prime is 42233141. The reversal of 42233131 is 13133224.

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 42233131 - 2⁵ = 42233099 is a prime.

It is a super-2 number, since 2×42233131² = 3567274708126322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42233099 and 42233108.

It is not an unprimeable number, because it can be changed into a prime (42233101) 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, 126280 + ... + 126613.

It is an arithmetic number, because the mean of its divisors is an integer number (10621548).

Almost surely, 2^42233131 is an apocalyptic number.

42233131 is a deficient number, since it is larger than the sum of its proper divisors (253061).

42233131 is a wasteful number, since it uses less digits than its factorization.

42233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253060.

The product of its digits is 432, while the sum is 19.

The square root of 42233131 is about 6498.7022550660. The cubic root of 42233131 is about 348.2446286088.

Adding to 42233131 its reverse (13133224), we get a palindrome (55366355).

The spelling of 42233131 in words is "forty-two million, two hundred thirty-three thousand, one hundred thirty-one".