1013130112021 has 4 divisors (see below), whose sum is σ = 1029738802444. Its totient is φ = 996521421600.

The previous prime is 1013130111991. The next prime is 1013130112073. The reversal of 1013130112021 is 1202110313101.

It is a happy number.

1013130112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 227301051121 + 785829060900 = 476761^2 + 886470^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013130112021 - 2⁵ = 1013130111989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1013130111986 and 1013130112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013130115021) 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, 8304345120 + ... + 8304345241.

It is an arithmetic number, because the mean of its divisors is an integer number (257434700611).

Almost surely, 2^{1013130112021} is an apocalyptic number.

It is an amenable number.

1013130112021 is a deficient number, since it is larger than the sum of its proper divisors (16608690423).

1013130112021 is an equidigital number, since it uses as much as digits as its factorization.

1013130112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608690422.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1013130112021 its reverse (1202110313101), we get a palindrome (2215240425122).

The spelling of 1013130112021 in words is "one trillion, thirteen billion, one hundred thirty million, one hundred twelve thousand, twenty-one".