131123322101 has 4 divisors (see below), whose sum is σ = 138024549600. Its totient is φ = 124222094604.

The previous prime is 131123322079. The next prime is 131123322157. The reversal of 131123322101 is 101223321131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131123322101 - 2¹⁴ = 131123305717 is a prime.

It is a super-3 number, since 3×131123322101³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131123222101) 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, 3450613721 + ... + 3450613758.

It is an arithmetic number, because the mean of its divisors is an integer number (34506137400).

Almost surely, 2^131123322101 is an apocalyptic number.

It is an amenable number.

131123322101 is a deficient number, since it is larger than the sum of its proper divisors (6901227499).

131123322101 is an equidigital number, since it uses as much as digits as its factorization.

131123322101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901227498.

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

Adding to 131123322101 its reverse (101223321131), we get a palindrome (232346643232).

The spelling of 131123322101 in words is "one hundred thirty-one billion, one hundred twenty-three million, three hundred twenty-two thousand, one hundred one".