21411020001 has 8 divisors (see below), whose sum is σ = 32626316224. Its totient is φ = 12234868560.

The previous prime is 21411019979. The next prime is 21411020047. The reversal of 21411020001 is 10002011412.

It is a happy number.

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

It is not a de Polignac number, because 21411020001 - 2⁵ = 21411019969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21411020101) 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, 509786170 + ... + 509786211.

It is an arithmetic number, because the mean of its divisors is an integer number (4078289528).

Almost surely, 2^21411020001 is an apocalyptic number.

21411020001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21411020001 is a deficient number, since it is larger than the sum of its proper divisors (11215296223).

21411020001 is a wasteful number, since it uses less digits than its factorization.

21411020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019572391.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21411020001 its reverse (10002011412), we get a palindrome (31413031413).

The spelling of 21411020001 in words is "twenty-one billion, four hundred eleven million, twenty thousand, one".