11202001231 has 2 divisors, whose sum is σ = 11202001232. Its totient is φ = 11202001230.

The previous prime is 11202001229. The next prime is 11202001273. The reversal of 11202001231 is 13210020211.

It is a weak prime.

It is an emirp because it is prime and its reverse (13210020211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11202001231 - 2¹ = 11202001229 is a prime.

It is a super-2 number, since 2×11202001231² (a number of 21 digits) contains 22 as substring.

Together with 11202001229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202001331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601000615 + 5601000616.

It is an arithmetic number, because the mean of its divisors is an integer number (5601000616).

Almost surely, 2^11202001231 is an apocalyptic number.

11202001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202001231 is an equidigital number, since it uses as much as digits as its factorization.

11202001231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11202001231 its reverse (13210020211), we get a palindrome (24412021442).

The spelling of 11202001231 in words is "eleven billion, two hundred two million, one thousand, two hundred thirty-one".