103633641021 has 32 divisors (see below), whose sum is σ = 149230771200. Its totient is φ = 63756789120.

The previous prime is 103633640909. The next prime is 103633641031. The reversal of 103633641021 is 120146336301.

It is not a de Polignac number, because 103633641021 - 2²⁹ = 103096770109 is a prime.

It is a super-3 number, since 3×103633641021³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 103633641021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103633641031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1477770 + ... + 1546308.

It is an arithmetic number, because the mean of its divisors is an integer number (4663461600).

Almost surely, 2^103633641021 is an apocalyptic number.

It is an amenable number.

103633641021 is a deficient number, since it is larger than the sum of its proper divisors (45597130179).

103633641021 is a wasteful number, since it uses less digits than its factorization.

103633641021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69249.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 103633641021 its reverse (120146336301), we get a palindrome (223779977322).

The spelling of 103633641021 in words is "one hundred three billion, six hundred thirty-three million, six hundred forty-one thousand, twenty-one".