111211023202231 has 4 divisors (see below), whose sum is σ = 111211729537672. Its totient is φ = 111210316866792.

The previous prime is 111211023202229. The next prime is 111211023202271. The reversal of 111211023202231 is 132202320112111.

It is a happy number.

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 111211023202231 - 2¹ = 111211023202229 is a prime.

It is a super-2 number, since 2×111211023202231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211023202271) 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, 352931496 + ... + 353246461.

It is an arithmetic number, because the mean of its divisors is an integer number (27802932384418).

Almost surely, 2^{111211023202231} is an apocalyptic number.

111211023202231 is a deficient number, since it is larger than the sum of its proper divisors (706335441).

111211023202231 is an equidigital number, since it uses as much as digits as its factorization.

111211023202231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706335440.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111211023202231 its reverse (132202320112111), we get a palindrome (243413343314342).

The spelling of 111211023202231 in words is "one hundred eleven trillion, two hundred eleven billion, twenty-three million, two hundred two thousand, two hundred thirty-one".