10131030443021 has 4 divisors (see below), whose sum is σ = 10131037282044. Its totient is φ = 10131023604000.

The previous prime is 10131030442997. The next prime is 10131030443113. The reversal of 10131030443021 is 12034403013101.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5416725592996 + 4714304850025 = 2327386^2 + 2171245^2 .

It is a cyclic number.

It is not a de Polignac number, because 10131030443021 - 2³⁴ = 10113850573837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131030443921) 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, 164960 + ... + 4504361.

It is an arithmetic number, because the mean of its divisors is an integer number (2532759320511).

Almost surely, 2^{10131030443021} is an apocalyptic number.

It is an amenable number.

10131030443021 is a deficient number, since it is larger than the sum of its proper divisors (6839023).

10131030443021 is an equidigital number, since it uses as much as digits as its factorization.

10131030443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839022.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 10131030443021 its reverse (12034403013101), we get a palindrome (22165433456122).

The spelling of 10131030443021 in words is "ten trillion, one hundred thirty-one billion, thirty million, four hundred forty-three thousand, twenty-one".