421041442011 has 4 divisors (see below), whose sum is σ = 561388589352. Its totient is φ = 280694294672.

The previous prime is 421041441971. The next prime is 421041442013. The reversal of 421041442011 is 110244140124.

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 421041442011 - 2¹³ = 421041433819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421041442013) 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, 70173573666 + ... + 70173573671.

It is an arithmetic number, because the mean of its divisors is an integer number (140347147338).

Almost surely, 2^421041442011 is an apocalyptic number.

421041442011 is a deficient number, since it is larger than the sum of its proper divisors (140347147341).

421041442011 is a wasteful number, since it uses less digits than its factorization.

421041442011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140347147340.

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 421041442011 its reverse (110244140124), we get a palindrome (531285582135).

The spelling of 421041442011 in words is "four hundred twenty-one billion, forty-one million, four hundred forty-two thousand, eleven".