11213422001231 has 4 divisors (see below), whose sum is σ = 11486920098864. Its totient is φ = 10939923903600.

The previous prime is 11213422001209. The next prime is 11213422001233. The reversal of 11213422001231 is 13210022431211.

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 11213422001231 - 2¹⁴ = 11213421984847 is a prime.

It is a super-2 number, since 2×11213422001231² (a number of 27 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 = 11213422001197 and 11213422001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213422001233) 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, 136749048755 + ... + 136749048836.

It is an arithmetic number, because the mean of its divisors is an integer number (2871730024716).

Almost surely, 2^{11213422001231} is an apocalyptic number.

11213422001231 is a deficient number, since it is larger than the sum of its proper divisors (273498097633).

11213422001231 is an equidigital number, since it uses as much as digits as its factorization.

11213422001231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273498097632.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 11213422001231 its reverse (13210022431211), we get a palindrome (24423444432442).

The spelling of 11213422001231 in words is "eleven trillion, two hundred thirteen billion, four hundred twenty-two million, one thousand, two hundred thirty-one".