100021310123 has 12 divisors (see below), whose sum is σ = 116529536880. Its totient is φ = 85601233872.

The previous prime is 100021310083. The next prime is 100021310141. The reversal of 100021310123 is 321013120001.

It is not a de Polignac number, because 100021310123 - 2⁸ = 100021309867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021310098 and 100021310107.

It is not an unprimeable number, because it can be changed into a prime (100021310153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530983 + ... + 1594976.

It is an arithmetic number, because the mean of its divisors is an integer number (9710794740).

Almost surely, 2^100021310123 is an apocalyptic number.

100021310123 is a deficient number, since it is larger than the sum of its proper divisors (16508226757).

100021310123 is an equidigital number, since it uses as much as digits as its factorization.

100021310123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3126626 (or 3126619 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 100021310123 its reverse (321013120001), we get a palindrome (421034430124).

The spelling of 100021310123 in words is "one hundred billion, twenty-one million, three hundred ten thousand, one hundred twenty-three".