100421044133 has 4 divisors (see below), whose sum is σ = 100471789440. Its totient is φ = 100370298828.

The previous prime is 100421044123. The next prime is 100421044159. The reversal of 100421044133 is 331440124001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331440124001 = 7 ⋅47348589143.

It is a cyclic number.

It is not a de Polignac number, because 100421044133 - 2¹² = 100421040037 is a prime.

It is a super-2 number, since 2×100421044133² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100421044099 and 100421044108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421044123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25369685 + ... + 25373642.

It is an arithmetic number, because the mean of its divisors is an integer number (25117947360).

Almost surely, 2^100421044133 is an apocalyptic number.

It is an amenable number.

100421044133 is a deficient number, since it is larger than the sum of its proper divisors (50745307).

100421044133 is an equidigital number, since it uses as much as digits as its factorization.

100421044133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50745306.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 100421044133 its reverse (331440124001), we get a palindrome (431861168134).

The spelling of 100421044133 in words is "one hundred billion, four hundred twenty-one million, forty-four thousand, one hundred thirty-three".