21141035999 has 4 divisors (see below), whose sum is σ = 21150968160. Its totient is φ = 21131103840.

The previous prime is 21141035911. The next prime is 21141036023. The reversal of 21141035999 is 99953014112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21141035999 - 2¹⁶ = 21140970463 is a prime.

It is a super-2 number, since 2×21141035999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21161035999) 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, 4962887 + ... + 4967144.

It is an arithmetic number, because the mean of its divisors is an integer number (5287742040).

Almost surely, 2^21141035999 is an apocalyptic number.

21141035999 is a deficient number, since it is larger than the sum of its proper divisors (9932161).

21141035999 is an equidigital number, since it uses as much as digits as its factorization.

21141035999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9932160.

The product of its (nonzero) digits is 87480, while the sum is 44.

The spelling of 21141035999 in words is "twenty-one billion, one hundred forty-one million, thirty-five thousand, nine hundred ninety-nine".