100320210321131 has 4 divisors (see below), whose sum is σ = 101294192945712. Its totient is φ = 99346227696552.

The previous prime is 100320210321077. The next prime is 100320210321139. The reversal of 100320210321131 is 131123012023001.

It is a happy number.

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 100320210321131 - 2¹⁰ = 100320210320107 is a prime.

It is a super-2 number, since 2×100320210321131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100320210321139) 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, 486991312136 + ... + 486991312341.

It is an arithmetic number, because the mean of its divisors is an integer number (25323548236428).

Almost surely, 2^{100320210321131} is an apocalyptic number.

100320210321131 is a deficient number, since it is larger than the sum of its proper divisors (973982624581).

100320210321131 is an equidigital number, since it uses as much as digits as its factorization.

100320210321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973982624580.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 100320210321131 its reverse (131123012023001), we get a palindrome (231443222344132).

The spelling of 100320210321131 in words is "one hundred trillion, three hundred twenty billion, two hundred ten million, three hundred twenty-one thousand, one hundred thirty-one".