42811051 has 2 divisors, whose sum is σ = 42811052. Its totient is φ = 42811050.

The previous prime is 42811039. The next prime is 42811061. The reversal of 42811051 is 15011824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42811051 - 2⁵ = 42811019 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42811061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21405525 + 21405526.

It is an arithmetic number, because the mean of its divisors is an integer number (21405526).

Almost surely, 2^42811051 is an apocalyptic number.

42811051 is a deficient number, since it is larger than the sum of its proper divisors (1).

42811051 is an equidigital number, since it uses as much as digits as its factorization.

42811051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 42811051 is about 6543.0154363260. The cubic root of 42811051 is about 349.8259025302.

Adding to 42811051 its reverse (15011824), we get a palindrome (57822875).

The spelling of 42811051 in words is "forty-two million, eight hundred eleven thousand, fifty-one".