630342011 has 4 divisors (see below), whose sum is σ = 678829872. Its totient is φ = 581854152.

The previous prime is 630341993. The next prime is 630342019. The reversal of 630342011 is 110243036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-630342011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630342019) 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, 24243911 + ... + 24243936.

It is an arithmetic number, because the mean of its divisors is an integer number (169707468).

Almost surely, 2^630342011 is an apocalyptic number.

630342011 is a deficient number, since it is larger than the sum of its proper divisors (48487861).

630342011 is a wasteful number, since it uses less digits than its factorization.

630342011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48487860.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 630342011 is about 25106.6128938174. The cubic root of 630342011 is about 857.4169887371.

Adding to 630342011 its reverse (110243036), we get a palindrome (740585047).

The spelling of 630342011 in words is "six hundred thirty million, three hundred forty-two thousand, eleven".