201013130233021 has 4 divisors (see below), whose sum is σ = 212837432011452. Its totient is φ = 189188828454592.

The previous prime is 201013130232997. The next prime is 201013130233031. The reversal of 201013130233021 is 120332031310102.

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 149933020941796 + 51080109291225 = 12244714^2 + 7147035^2 .

It is not a de Polignac number, because 201013130233021 - 2⁵ = 201013130232989 is a prime.

It is a super-2 number, since 2×201013130233021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201013130232983 and 201013130233001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201013130233031) 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, 5912150889190 + ... + 5912150889223.

It is an arithmetic number, because the mean of its divisors is an integer number (53209358002863).

Almost surely, 2^{201013130233021} is an apocalyptic number.

It is an amenable number.

201013130233021 is a deficient number, since it is larger than the sum of its proper divisors (11824301778431).

201013130233021 is a wasteful number, since it uses less digits than its factorization.

201013130233021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11824301778430.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 201013130233021 its reverse (120332031310102), we get a palindrome (321345161543123).

The spelling of 201013130233021 in words is "two hundred one trillion, thirteen billion, one hundred thirty million, two hundred thirty-three thousand, twenty-one".