10011040421 has 4 divisors (see below), whose sum is σ = 10446303072. Its totient is φ = 9575777772.

The previous prime is 10011040387. The next prime is 10011040433. The reversal of 10011040421 is 12404011001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12404011001 = 163 ⋅76098227.

It is a de Polignac number, because none of the positive numbers 2^k-10011040421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10011040396 and 10011040405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011040441) 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, 217631291 + ... + 217631336.

It is an arithmetic number, because the mean of its divisors is an integer number (2611575768).

Almost surely, 2^10011040421 is an apocalyptic number.

It is an amenable number.

10011040421 is a deficient number, since it is larger than the sum of its proper divisors (435262651).

10011040421 is an equidigital number, since it uses as much as digits as its factorization.

10011040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435262650.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10011040421 its reverse (12404011001), we get a palindrome (22415051422).

The spelling of 10011040421 in words is "ten billion, eleven million, forty thousand, four hundred twenty-one".