424121021011 has 4 divisors (see below), whose sum is σ = 424123662024. Its totient is φ = 424118380000.

The previous prime is 424121020991. The next prime is 424121021081. The reversal of 424121021011 is 110120121424.

It is a happy number.

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 424121021011 - 2¹¹ = 424121018963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424121021011.

It is not an unprimeable number, because it can be changed into a prime (424121021081) 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, 1062865 + ... + 1406386.

It is an arithmetic number, because the mean of its divisors is an integer number (106030915506).

Almost surely, 2^424121021011 is an apocalyptic number.

424121021011 is a deficient number, since it is larger than the sum of its proper divisors (2641013).

424121021011 is a wasteful number, since it uses less digits than its factorization.

424121021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641012.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 424121021011 its reverse (110120121424), we get a palindrome (534241142435).

The spelling of 424121021011 in words is "four hundred twenty-four billion, one hundred twenty-one million, twenty-one thousand, eleven".