11123312002231 has 16 divisors (see below), whose sum is σ = 13489493649408. Its totient is φ = 9033143061600.

The previous prime is 11123312002151. The next prime is 11123312002337. The reversal of 11123312002231 is 13220021332111.

It is a cyclic number.

It is not a de Polignac number, because 11123312002231 - 2⁹ = 11123312001719 is a prime.

It is a super-2 number, since 2×11123312002231² (a number of 27 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 (11123312002531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254598771 + ... + 1254607636.

It is an arithmetic number, because the mean of its divisors is an integer number (843093353088).

Almost surely, 2^{11123312002231} is an apocalyptic number.

11123312002231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11123312002231 is a deficient number, since it is larger than the sum of its proper divisors (2366181647177).

11123312002231 is a wasteful number, since it uses less digits than its factorization.

11123312002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509206462.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11123312002231 its reverse (13220021332111), we get a palindrome (24343333334342).

The spelling of 11123312002231 in words is "eleven trillion, one hundred twenty-three billion, three hundred twelve million, two thousand, two hundred thirty-one".