1131202110021 has 16 divisors (see below), whose sum is σ = 1614561446400. Its totient is φ = 702334225008.

The previous prime is 1131202109987. The next prime is 1131202110043. The reversal of 1131202110021 is 1200112021311.

It is not a de Polignac number, because 1131202110021 - 2¹⁰ = 1131202108997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131202110091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168180121 + ... + 168186846.

It is an arithmetic number, because the mean of its divisors is an integer number (100910090400).

Almost surely, 2^{1131202110021} is an apocalyptic number.

It is an amenable number.

1131202110021 is a deficient number, since it is larger than the sum of its proper divisors (483359336379).

1131202110021 is a wasteful number, since it uses less digits than its factorization.

1131202110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336367048.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1131202110021 its reverse (1200112021311), we get a palindrome (2331314131332).

The spelling of 1131202110021 in words is "one trillion, one hundred thirty-one billion, two hundred two million, one hundred ten thousand, twenty-one".