131110101123 has 4 divisors (see below), whose sum is σ = 174813468168. Its totient is φ = 87406734080.

The previous prime is 131110101121. The next prime is 131110101151. The reversal of 131110101123 is 321101011131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321101011131 = 3 ⋅107033670377.

It is a cyclic number.

It is not a de Polignac number, because 131110101123 - 2¹ = 131110101121 is a prime.

It is a super-2 number, since 2×131110101123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131110101121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21851683518 + ... + 21851683523.

It is an arithmetic number, because the mean of its divisors is an integer number (43703367042).

Almost surely, 2^131110101123 is an apocalyptic number.

131110101123 is a deficient number, since it is larger than the sum of its proper divisors (43703367045).

131110101123 is an equidigital number, since it uses as much as digits as its factorization.

131110101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43703367044.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 131110101123 its reverse (321101011131), we get a palindrome (452211112254).

The spelling of 131110101123 in words is "one hundred thirty-one billion, one hundred ten million, one hundred one thousand, one hundred twenty-three".