21099189003 has 8 divisors (see below), whose sum is σ = 28141371600. Its totient is φ = 14061566208.

The previous prime is 21099188933. The next prime is 21099189029. The reversal of 21099189003 is 30098199012.

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

It is not a de Polignac number, because 21099189003 - 2³³ = 12509254411 is a prime.

It is a super-2 number, since 2×21099189003² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21099184003) 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, 1129138 + ... + 1147671.

It is an arithmetic number, because the mean of its divisors is an integer number (3517671450).

Almost surely, 2^21099189003 is an apocalyptic number.

21099189003 is a deficient number, since it is larger than the sum of its proper divisors (7042182597).

21099189003 is a wasteful number, since it uses less digits than its factorization.

21099189003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279901.

The product of its (nonzero) digits is 34992, while the sum is 42.

The spelling of 21099189003 in words is "twenty-one billion, ninety-nine million, one hundred eighty-nine thousand, three".