100421745860053 has 4 divisors (see below), whose sum is σ = 100864132405920. Its totient is φ = 99979359314188.

The previous prime is 100421745860039. The next prime is 100421745860071. The reversal of 100421745860053 is 350068547124001.

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.

It is a cyclic number.

It is not a de Polignac number, because 100421745860053 - 2¹⁷ = 100421745728981 is a prime.

It is a super-2 number, since 2×100421745860053² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100421745859985 and 100421745860012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100424745860053) 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, 221193272593 + ... + 221193273046.

It is an arithmetic number, because the mean of its divisors is an integer number (25216033101480).

Almost surely, 2^{100421745860053} is an apocalyptic number.

It is an amenable number.

100421745860053 is a deficient number, since it is larger than the sum of its proper divisors (442386545867).

100421745860053 is an equidigital number, since it uses as much as digits as its factorization.

100421745860053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442386545866.

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 100421745860053 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred sixty thousand, fifty-three".