100020221303131 has 4 divisors (see below), whose sum is σ = 105284443477000. Its totient is φ = 94755999129264.

The previous prime is 100020221303029. The next prime is 100020221303153. The reversal of 100020221303131 is 131303122020001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100020221303131 - 2²⁵ = 100020187748699 is a prime.

It is a super-2 number, since 2×100020221303131² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5264222173849 = 100020221303131 / (1 + 0 + 0 + 0 + 2 + 0 + 2 + 2 + 1 + 3 + 0 + 3 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100020221303099 and 100020221303108.

It is not an unprimeable number, because it can be changed into a prime (100020221303231) 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, 2632111086906 + ... + 2632111086943.

It is an arithmetic number, because the mean of its divisors is an integer number (26321110869250).

Almost surely, 2^{100020221303131} is an apocalyptic number.

100020221303131 is a deficient number, since it is larger than the sum of its proper divisors (5264222173869).

100020221303131 is an equidigital number, since it uses as much as digits as its factorization.

100020221303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264222173868.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 100020221303131 its reverse (131303122020001), we get a palindrome (231323343323132).

The spelling of 100020221303131 in words is "one hundred trillion, twenty billion, two hundred twenty-one million, three hundred three thousand, one hundred thirty-one".