10020320213131 has 4 divisors (see below), whose sum is σ = 10020365550072. Its totient is φ = 10020274876192.

The previous prime is 10020320213023. The next prime is 10020320213191. The reversal of 10020320213131 is 13131202302001.

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 10020320213131 - 2⁹ = 10020320212619 is a prime.

It is a super-2 number, since 2×10020320213131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020320213099 and 10020320213108.

It is not an unprimeable number, because it can be changed into a prime (10020320213191) 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, 22335310 + ... + 22779523.

It is an arithmetic number, because the mean of its divisors is an integer number (2505091387518).

Almost surely, 2^{10020320213131} is an apocalyptic number.

10020320213131 is a deficient number, since it is larger than the sum of its proper divisors (45336941).

10020320213131 is an equidigital number, since it uses as much as digits as its factorization.

10020320213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45336940.

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

Adding to 10020320213131 its reverse (13131202302001), we get a palindrome (23151522515132).

The spelling of 10020320213131 in words is "ten trillion, twenty billion, three hundred twenty million, two hundred thirteen thousand, one hundred thirty-one".