1123131022311 has 16 divisors (see below), whose sum is σ = 1577693859840. Its totient is φ = 708729580800.

The previous prime is 1123131022243. The next prime is 1123131022319. The reversal of 1123131022311 is 1132201313211.

It is not a de Polignac number, because 1123131022311 - 2²¹ = 1123128925159 is a prime.

It is a super-2 number, since 2×1123131022311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123131022319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8493930 + ... + 8625143.

It is an arithmetic number, because the mean of its divisors is an integer number (98605866240).

Almost surely, 2^{1123131022311} is an apocalyptic number.

1123131022311 is a deficient number, since it is larger than the sum of its proper divisors (454562837529).

1123131022311 is a wasteful number, since it uses less digits than its factorization.

1123131022311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17120246.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1123131022311 its reverse (1132201313211), we get a palindrome (2255332335522).

The spelling of 1123131022311 in words is "one trillion, one hundred twenty-three billion, one hundred thirty-one million, twenty-two thousand, three hundred eleven".