10131121113220 has 12 divisors (see below), whose sum is σ = 21275354337804. Its totient is φ = 4052448445280.

The previous prime is 10131121113173. The next prime is 10131121113227. The reversal of 10131121113220 is 2231112113101.

It can be written as a sum of positive squares in 2 ways, for example, as 1196665342084 + 8934455771136 = 1093922^2 + 2989056^2 .

It is not an unprimeable number, because it can be changed into a prime (10131121113227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253278027811 + ... + 253278027850.

It is an arithmetic number, because the mean of its divisors is an integer number (1772946194817).

Almost surely, 2^{10131121113220} is an apocalyptic number.

10131121113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131121113220 is an abundant number, since it is smaller than the sum of its proper divisors (11144233224584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10131121113220 is a wasteful number, since it uses less digits than its factorization.

10131121113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506556055670 (or 506556055668 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 10131121113220 its reverse (2231112113101), we get a palindrome (12362233226321).

The spelling of 10131121113220 in words is "ten trillion, one hundred thirty-one billion, one hundred twenty-one million, one hundred thirteen thousand, two hundred twenty".