1101123211231 has 8 divisors (see below), whose sum is σ = 1111454213760. Its totient is φ = 1090792952088.

The previous prime is 1101123211229. The next prime is 1101123211241. The reversal of 1101123211231 is 1321123211011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1101123211231 - 2¹ = 1101123211229 is a prime.

It is a super-2 number, since 2×1101123211231² (a number of 25 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 = 1101123211199 and 1101123211208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101123211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3054150 + ... + 3395596.

It is an arithmetic number, because the mean of its divisors is an integer number (138931776720).

Almost surely, 2^{1101123211231} is an apocalyptic number.

1101123211231 is a deficient number, since it is larger than the sum of its proper divisors (10331002529).

1101123211231 is a wasteful number, since it uses less digits than its factorization.

1101123211231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371693.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1101123211231 its reverse (1321123211011), we get a palindrome (2422246422242).

The spelling of 1101123211231 in words is "one trillion, one hundred one billion, one hundred twenty-three million, two hundred eleven thousand, two hundred thirty-one".