4021234111009 has 4 divisors (see below), whose sum is σ = 4021381994004. Its totient is φ = 4021086228016.

The previous prime is 4021234110977. The next prime is 4021234111021. The reversal of 4021234111009 is 9001114321204.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1119226464225 + 2902007646784 = 1057935^2 + 1703528^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021234111009 - 2⁵ = 4021234110977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021234111049) 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, 73900702 + ... + 73955095.

It is an arithmetic number, because the mean of its divisors is an integer number (1005345498501).

Almost surely, 2^{4021234111009} is an apocalyptic number.

It is an amenable number.

4021234111009 is a deficient number, since it is larger than the sum of its proper divisors (147882995).

4021234111009 is a wasteful number, since it uses less digits than its factorization.

4021234111009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147882994.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 4021234111009 in words is "four trillion, twenty-one billion, two hundred thirty-four million, one hundred eleven thousand, nine".