42133111231 has 2 divisors, whose sum is σ = 42133111232. Its totient is φ = 42133111230.

The previous prime is 42133111213. The next prime is 42133111259. The reversal of 42133111231 is 13211133124.

Together with previous prime (42133111213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42133111231 - 2⁷ = 42133111103 is a prime.

It is a super-2 number, since 2×42133111231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42133121231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21066555615 + 21066555616.

It is an arithmetic number, because the mean of its divisors is an integer number (21066555616).

Almost surely, 2^42133111231 is an apocalyptic number.

42133111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42133111231 is an equidigital number, since it uses as much as digits as its factorization.

42133111231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

Adding to 42133111231 its reverse (13211133124), we get a palindrome (55344244355).

The spelling of 42133111231 in words is "forty-two billion, one hundred thirty-three million, one hundred eleven thousand, two hundred thirty-one".