10113121021013 has 4 divisors (see below), whose sum is σ = 10113208114668. Its totient is φ = 10113033927360.

The previous prime is 10113121020973. The next prime is 10113121021019. The reversal of 10113121021013 is 31012012131101.

10113121021013 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 3584365270564 + 6528755750449 = 1893242^2 + 2555143^2 .

It is a cyclic number.

It is not a de Polignac number, because 10113121021013 - 2⁶ = 10113121020949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10113121020982 and 10113121021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10113121021019) 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, 43372418 + ... + 43604963.

It is an arithmetic number, because the mean of its divisors is an integer number (2528302028667).

Almost surely, 2^{10113121021013} is an apocalyptic number.

It is an amenable number.

10113121021013 is a deficient number, since it is larger than the sum of its proper divisors (87093655).

10113121021013 is an equidigital number, since it uses as much as digits as its factorization.

10113121021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87093654.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 10113121021013 its reverse (31012012131101), we get a palindrome (41125133152114).

The spelling of 10113121021013 in words is "ten trillion, one hundred thirteen billion, one hundred twenty-one million, twenty-one thousand, thirteen".