21403430001001 has 8 divisors (see below), whose sum is σ = 22467750528384. Its totient is φ = 20350254191520.

The previous prime is 21403430000999. The next prime is 21403430001011. The reversal of 21403430001001 is 10010003430412.

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 21403430001001 - 2¹ = 21403430000999 is a prime.

It is a super-2 number, since 2×21403430001001² (a number of 27 digits) contains 22 as substring.

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 21403430001001.

It is not an unprimeable number, because it can be changed into a prime (21403430001011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786175540 + ... + 2786183221.

It is an arithmetic number, because the mean of its divisors is an integer number (2808468816048).

Almost surely, 2^{21403430001001} is an apocalyptic number.

It is an amenable number.

21403430001001 is a deficient number, since it is larger than the sum of its proper divisors (1064320527383).

21403430001001 is a wasteful number, since it uses less digits than its factorization.

21403430001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5572358951.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21403430001001 its reverse (10010003430412), we get a palindrome (31413433431413).

The spelling of 21403430001001 in words is "twenty-one trillion, four hundred three billion, four hundred thirty million, one thousand, one".