42633131161 has 2 divisors, whose sum is σ = 42633131162. Its totient is φ = 42633131160.

The previous prime is 42633131111. The next prime is 42633131179. The reversal of 42633131161 is 16113133624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37073191936 + 5559939225 = 192544^2 + 74565^2 .

It is a cyclic number.

It is not a de Polignac number, because 42633131161 - 2⁷ = 42633131033 is a prime.

It is a super-4 number, since 4×42633131161⁴ (a number of 44 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (42633131111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21316565580 + 21316565581.

It is an arithmetic number, because the mean of its divisors is an integer number (21316565581).

Almost surely, 2^42633131161 is an apocalyptic number.

It is an amenable number.

42633131161 is a deficient number, since it is larger than the sum of its proper divisors (1).

42633131161 is an equidigital number, since it uses as much as digits as its factorization.

42633131161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

Adding to 42633131161 its reverse (16113133624), we get a palindrome (58746264785).

The spelling of 42633131161 in words is "forty-two billion, six hundred thirty-three million, one hundred thirty-one thousand, one hundred sixty-one".