131111130221123 has 6 divisors (see below), whose sum is σ = 141972407281044. Its totient is φ = 121025658665496.

The previous prime is 131111130221117. The next prime is 131111130221153. The reversal of 131111130221123 is 321122031111131.

It is not a de Polignac number, because 131111130221123 - 2⁶ = 131111130221059 is a prime.

It is a super-2 number, since 2×131111130221123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131111130221153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 387902751965 + ... + 387902752302.

It is an arithmetic number, because the mean of its divisors is an integer number (23662067880174).

Almost surely, 2^{131111130221123} is an apocalyptic number.

131111130221123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131111130221123 is a deficient number, since it is larger than the sum of its proper divisors (10861277059921).

131111130221123 is an equidigital number, since it uses as much as digits as its factorization.

131111130221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775805504293 (or 775805504280 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

Adding to 131111130221123 its reverse (321122031111131), we get a palindrome (452233161332254).

The spelling of 131111130221123 in words is "one hundred thirty-one trillion, one hundred eleven billion, one hundred thirty million, two hundred twenty-one thousand, one hundred twenty-three".