11331211131123 has 32 divisors (see below), whose sum is σ = 17132384505600. Its totient is φ = 6603894976896.

The previous prime is 11331211131073. The next prime is 11331211131139. The reversal of 11331211131123 is 32113111213311.

It is not a de Polignac number, because 11331211131123 - 2⁶ = 11331211131059 is a prime.

It is a super-2 number, since 2×11331211131123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11331211131093 and 11331211131102.

It is not an unprimeable number, because it can be changed into a prime (11331211131173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220308 + ... + 4765601.

It is an arithmetic number, because the mean of its divisors is an integer number (535387015800).

Almost surely, 2^{11331211131123} is an apocalyptic number.

11331211131123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11331211131123 is a deficient number, since it is larger than the sum of its proper divisors (5801173374477).

11331211131123 is a wasteful number, since it uses less digits than its factorization.

11331211131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4989011.

The product of its digits is 324, while the sum is 24.

Adding to 11331211131123 its reverse (32113111213311), we get a palindrome (43444322344434).

The spelling of 11331211131123 in words is "eleven trillion, three hundred thirty-one billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty-three".