10130101021 has 4 divisors (see below), whose sum is σ = 10174337500. Its totient is φ = 10085864544.

The previous prime is 10130101019. The next prime is 10130101057. The reversal of 10130101021 is 12010103101.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4571652996 + 5558448025 = 67614^2 + 74555^2 .

It is a cyclic number.

It is not a de Polignac number, because 10130101021 - 2¹ = 10130101019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10130100989 and 10130101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10130101081) 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, 22117896 + ... + 22118353.

It is an arithmetic number, because the mean of its divisors is an integer number (2543584375).

Almost surely, 2^10130101021 is an apocalyptic number.

It is an amenable number.

10130101021 is a deficient number, since it is larger than the sum of its proper divisors (44236479).

10130101021 is an equidigital number, since it uses as much as digits as its factorization.

10130101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44236478.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 10130101021 its reverse (12010103101), we get a palindrome (22140204122).

It can be divided in two parts, 10 and 130101021, that added together give a palindrome (130101031).

The spelling of 10130101021 in words is "ten billion, one hundred thirty million, one hundred one thousand, twenty-one".