100302313421 has 4 divisors (see below), whose sum is σ = 100303140732. Its totient is φ = 100301486112.

The previous prime is 100302313393. The next prime is 100302313429. The reversal of 100302313421 is 124313203001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22324543396 + 77977770025 = 149414^2 + 279245^2 .

It is a cyclic number.

It is not a de Polignac number, because 100302313421 - 2⁶ = 100302313357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100302313393 and 100302313402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100302313429) 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, 192320 + ... + 487433.

It is an arithmetic number, because the mean of its divisors is an integer number (25075785183).

Almost surely, 2^100302313421 is an apocalyptic number.

It is an amenable number.

100302313421 is a deficient number, since it is larger than the sum of its proper divisors (827311).

100302313421 is an equidigital number, since it uses as much as digits as its factorization.

100302313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827310.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100302313421 its reverse (124313203001), we get a palindrome (224615516422).

The spelling of 100302313421 in words is "one hundred billion, three hundred two million, three hundred thirteen thousand, four hundred twenty-one".