21403411001 has 8 divisors (see below), whose sum is σ = 25524564864. Its totient is φ = 17548138080.

The previous prime is 21403410991. The next prime is 21403411013. The reversal of 21403411001 is 10011430412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21403411001 - 2¹⁰ = 21403409977 is a prime.

It is a super-4 number, since 4×21403411001⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21403411801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66470060 + ... + 66470381.

It is an arithmetic number, because the mean of its divisors is an integer number (3190570608).

Almost surely, 2^21403411001 is an apocalyptic number.

It is an amenable number.

21403411001 is a deficient number, since it is larger than the sum of its proper divisors (4121153863).

21403411001 is a wasteful number, since it uses less digits than its factorization.

21403411001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132940471.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21403411001 its reverse (10011430412), we get a palindrome (31414841413).

The spelling of 21403411001 in words is "twenty-one billion, four hundred three million, four hundred eleven thousand, one".