21103000562 has 8 divisors (see below), whose sum is σ = 36176572416. Its totient is φ = 9044143092.

The previous prime is 21103000547. The next prime is 21103000573. The reversal of 21103000562 is 26500030112.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753678578 + ... + 753678605.

It is an arithmetic number, because the mean of its divisors is an integer number (4522071552).

Almost surely, 2^21103000562 is an apocalyptic number.

21103000562 is a deficient number, since it is larger than the sum of its proper divisors (15073571854).

21103000562 is a wasteful number, since it uses less digits than its factorization.

21103000562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507357192.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 21103000562 its reverse (26500030112), we get a palindrome (47603030674).

The spelling of 21103000562 in words is "twenty-one billion, one hundred three million, five hundred sixty-two", and thus it is an aban number.