21103002141133 has 6 divisors (see below), whose sum is σ = 23195861857742. Its totient is φ = 19184547400920.

The previous prime is 21103002141113. The next prime is 21103002141139. The reversal of 21103002141133 is 33114120030112.

It can be written as a sum of positive squares in only one way, i.e., 14310165962884 + 6792836178249 = 3782878^2 + 2606307^2 .

It is a de Polignac number, because none of the positive numbers 2^k-21103002141133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21103002141139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87202488066 + ... + 87202488307.

Almost surely, 2^{21103002141133} is an apocalyptic number.

It is an amenable number.

21103002141133 is a deficient number, since it is larger than the sum of its proper divisors (2092859716609).

21103002141133 is a wasteful number, since it uses less digits than its factorization.

21103002141133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174404976395 (or 174404976384 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21103002141133 its reverse (33114120030112), we get a palindrome (54217122171245).

The spelling of 21103002141133 in words is "twenty-one trillion, one hundred three billion, two million, one hundred forty-one thousand, one hundred thirty-three".