20101133301121 has 4 divisors (see below), whose sum is σ = 20102577258244. Its totient is φ = 20099689344000.

The previous prime is 20101133301043. The next prime is 20101133301131. The reversal of 20101133301121 is 12110333110102.

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 7730824350096 + 12370308951025 = 2780436^2 + 3517145^2 .

It is a cyclic number.

It is not a de Polignac number, because 20101133301121 - 2²⁹ = 20100596430209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101133301131) 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, 721957680 + ... + 721985521.

It is an arithmetic number, because the mean of its divisors is an integer number (5025644314561).

Almost surely, 2^{20101133301121} is an apocalyptic number.

It is an amenable number.

20101133301121 is a deficient number, since it is larger than the sum of its proper divisors (1443957123).

20101133301121 is a wasteful number, since it uses less digits than its factorization.

20101133301121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443957122.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20101133301121 its reverse (12110333110102), we get a palindrome (32211466411223).

The spelling of 20101133301121 in words is "twenty trillion, one hundred one billion, one hundred thirty-three million, three hundred one thousand, one hundred twenty-one".