10105401155021 has 4 divisors (see below), whose sum is σ = 10105427576700. Its totient is φ = 10105374733344.

The previous prime is 10105401154991. The next prime is 10105401155033. The reversal of 10105401155021 is 12055110450101.

It is a happy number.

10105401155021 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 1310083978921 + 8795317176100 = 1144589^2 + 2965690^2 .

It is a cyclic number.

It is not a de Polignac number, because 10105401155021 - 2⁶ = 10105401154957 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 (10105401155321) 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, 12628586 + ... + 13404923.

It is an arithmetic number, because the mean of its divisors is an integer number (2526356894175).

Almost surely, 2^{10105401155021} is an apocalyptic number.

It is an amenable number.

10105401155021 is a deficient number, since it is larger than the sum of its proper divisors (26421679).

10105401155021 is an equidigital number, since it uses as much as digits as its factorization.

10105401155021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26421678.

The product of its (nonzero) digits is 1000, while the sum is 26.

The spelling of 10105401155021 in words is "ten trillion, one hundred five billion, four hundred one million, one hundred fifty-five thousand, twenty-one".