131222101123 has 4 divisors (see below), whose sum is σ = 131283051768. Its totient is φ = 131161150480.

The previous prime is 131222101121. The next prime is 131222101151. The reversal of 131222101123 is 321101222131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321101222131 = 25541 ⋅12571991.

It is a cyclic number.

It is not a de Polignac number, because 131222101123 - 2¹ = 131222101121 is a prime.

It is a super-2 number, since 2×131222101123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131222101123.

It is not an unprimeable number, because it can be changed into a prime (131222101121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30472093 + ... + 30476398.

It is an arithmetic number, because the mean of its divisors is an integer number (32820762942).

Almost surely, 2^131222101123 is an apocalyptic number.

131222101123 is a deficient number, since it is larger than the sum of its proper divisors (60950645).

131222101123 is an equidigital number, since it uses as much as digits as its factorization.

131222101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60950644.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 131222101123 its reverse (321101222131), we get a palindrome (452323323254).

The spelling of 131222101123 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-three".