100021101311 has 4 divisors (see below), whose sum is σ = 101144934000. Its totient is φ = 98897268624.

The previous prime is 100021101293. The next prime is 100021101317. The reversal of 100021101311 is 113101120001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113101120001 = 6793 ⋅16649657.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100021101311 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021101292 and 100021101301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021101317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561916211 + ... + 561916388.

It is an arithmetic number, because the mean of its divisors is an integer number (25286233500).

Almost surely, 2^100021101311 is an apocalyptic number.

100021101311 is a deficient number, since it is larger than the sum of its proper divisors (1123832689).

100021101311 is an equidigital number, since it uses as much as digits as its factorization.

100021101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123832688.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 100021101311 its reverse (113101120001), we get a palindrome (213122221312).

The spelling of 100021101311 in words is "one hundred billion, twenty-one million, one hundred one thousand, three hundred eleven".