11201011202231 has 2 divisors, whose sum is σ = 11201011202232. Its totient is φ = 11201011202230.

The previous prime is 11201011202189. The next prime is 11201011202281. The reversal of 11201011202231 is 13220211010211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201011202231 is a prime.

It is a super-2 number, since 2×11201011202231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11201011202281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600505601115 + 5600505601116.

It is an arithmetic number, because the mean of its divisors is an integer number (5600505601116).

Almost surely, 2^{11201011202231} is an apocalyptic number.

11201011202231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201011202231 is an equidigital number, since it uses as much as digits as its factorization.

11201011202231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11201011202231 its reverse (13220211010211), we get a palindrome (24421222212442).

The spelling of 11201011202231 in words is "eleven trillion, two hundred one billion, eleven million, two hundred two thousand, two hundred thirty-one".