131043101123 has 4 divisors (see below), whose sum is σ = 142956110328. Its totient is φ = 119130091920.

The previous prime is 131043101117. The next prime is 131043101131. The reversal of 131043101123 is 321101340131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131043101123 is a prime.

It is a super-2 number, since 2×131043101123² (a number of 23 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 = 131043101095 and 131043101104.

It is not an unprimeable number, because it can be changed into a prime (131043101153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5956504586 + ... + 5956504607.

It is an arithmetic number, because the mean of its divisors is an integer number (35739027582).

Almost surely, 2^131043101123 is an apocalyptic number.

131043101123 is a deficient number, since it is larger than the sum of its proper divisors (11913009205).

131043101123 is a wasteful number, since it uses less digits than its factorization.

131043101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11913009204.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131043101123 its reverse (321101340131), we get a palindrome (452144441254).

The spelling of 131043101123 in words is "one hundred thirty-one billion, forty-three million, one hundred one thousand, one hundred twenty-three".