11201021232131 has 4 divisors (see below), whose sum is σ = 11201142235200. Its totient is φ = 11200900229064.

The previous prime is 11201021232097. The next prime is 11201021232157. The reversal of 11201021232131 is 13123212010211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11201021232131 - 2²² = 11201017037827 is a prime.

It is a super-2 number, since 2×11201021232131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201021232161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60362576 + ... + 60547853.

It is an arithmetic number, because the mean of its divisors is an integer number (2800285558800).

Almost surely, 2^{11201021232131} is an apocalyptic number.

11201021232131 is a deficient number, since it is larger than the sum of its proper divisors (121003069).

11201021232131 is an equidigital number, since it uses as much as digits as its factorization.

11201021232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121003068.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11201021232131 its reverse (13123212010211), we get a palindrome (24324233242342).

The spelling of 11201021232131 in words is "eleven trillion, two hundred one billion, twenty-one million, two hundred thirty-two thousand, one hundred thirty-one".