21100003153 has 16 divisors (see below), whose sum is σ = 22105654272. Its totient is φ = 20115144000.

The previous prime is 21100003117. The next prime is 21100003157. The reversal of 21100003153 is 35130000112.

It is a cyclic number.

It is not a de Polignac number, because 21100003153 - 2²¹ = 21097906001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21100003157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3282883 + ... + 3289303.

It is an arithmetic number, because the mean of its divisors is an integer number (1381603392).

Almost surely, 2^21100003153 is an apocalyptic number.

It is an amenable number.

21100003153 is a deficient number, since it is larger than the sum of its proper divisors (1005651119).

21100003153 is a wasteful number, since it uses less digits than its factorization.

21100003153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016.

The product of its (nonzero) digits is 90, while the sum is 16.

Adding to 21100003153 its reverse (35130000112), we get a palindrome (56230003265).

The spelling of 21100003153 in words is "twenty-one billion, one hundred million, three thousand, one hundred fifty-three".