21403232000511 has 8 divisors (see below), whose sum is σ = 28814707159680. Its totient is φ = 14130289087512.

The previous prime is 21403232000483. The next prime is 21403232000519. The reversal of 21403232000511 is 11500023230412.

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

It is not a de Polignac number, because 21403232000511 - 2⁴² = 17005185489407 is a prime.

It is a super-2 number, since 2×21403232000511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21403232000519) 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, 34633061181 + ... + 34633061798.

It is an arithmetic number, because the mean of its divisors is an integer number (3601838394960).

Almost surely, 2^{21403232000511} is an apocalyptic number.

21403232000511 is a deficient number, since it is larger than the sum of its proper divisors (7411475159169).

21403232000511 is a wasteful number, since it uses less digits than its factorization.

21403232000511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69266123085.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21403232000511 its reverse (11500023230412), we get a palindrome (32903255230923).

The spelling of 21403232000511 in words is "twenty-one trillion, four hundred three billion, two hundred thirty-two million, five hundred eleven", and thus it is an aban number.