10202020131131 has 4 divisors (see below), whose sum is σ = 10802138962392. Its totient is φ = 9601901299872.

The previous prime is 10202020131119. The next prime is 10202020131167. The reversal of 10202020131131 is 13113102020201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10202020131131 is a prime.

It is a super-2 number, since 2×10202020131131² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 600118831243 = 10202020131131 / (1 + 0 + 2 + 0 + 2 + 0 + 2 + 0 + 1 + 3 + 1 + 1 + 3 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10202020131181) 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, 300059415605 + ... + 300059415638.

It is an arithmetic number, because the mean of its divisors is an integer number (2700534740598).

Almost surely, 2^{10202020131131} is an apocalyptic number.

10202020131131 is a deficient number, since it is larger than the sum of its proper divisors (600118831261).

10202020131131 is an equidigital number, since it uses as much as digits as its factorization.

10202020131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600118831260.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10202020131131 its reverse (13113102020201), we get a palindrome (23315122151332).

The spelling of 10202020131131 in words is "ten trillion, two hundred two billion, twenty million, one hundred thirty-one thousand, one hundred thirty-one".