42311051 has 4 divisors (see below), whose sum is σ = 42570792. Its totient is φ = 42051312.

The previous prime is 42311033. The next prime is 42311089. The reversal of 42311051 is 15011324.

42311051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42311051 - 2⁶ = 42310987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42311851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129626 + ... + 129951.

It is an arithmetic number, because the mean of its divisors is an integer number (10642698).

Almost surely, 2^42311051 is an apocalyptic number.

42311051 is a deficient number, since it is larger than the sum of its proper divisors (259741).

42311051 is a wasteful number, since it uses less digits than its factorization.

42311051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259740.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 42311051 is about 6504.6945354874. The cubic root of 42311051 is about 348.4586671276.

Adding to 42311051 its reverse (15011324), we get a palindrome (57322375).

The spelling of 42311051 in words is "forty-two million, three hundred eleven thousand, fifty-one".