123220102120131 has 8 divisors (see below), whose sum is σ = 166745610829504. Its totient is φ = 80920664078760.

The previous prime is 123220102120099. The next prime is 123220102120147. The reversal of 123220102120131 is 131021201022321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123220102120131 - 2⁵ = 123220102120099 is a prime.

It is a super-2 number, since 2×123220102120131² (a number of 29 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 = 123220102120098 and 123220102120107.

It is not an unprimeable number, because it can be changed into a prime (123220102100131) 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 7 ways as a sum of consecutive naturals, for example, 306517666765 + ... + 306517667166.

It is an arithmetic number, because the mean of its divisors is an integer number (20843201353688).

Almost surely, 2^{123220102120131} is an apocalyptic number.

123220102120131 is a deficient number, since it is larger than the sum of its proper divisors (43525508709373).

123220102120131 is an equidigital number, since it uses as much as digits as its factorization.

123220102120131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613035334001.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 123220102120131 its reverse (131021201022321), we get a palindrome (254241303142452).

The spelling of 123220102120131 in words is "one hundred twenty-three trillion, two hundred twenty billion, one hundred two million, one hundred twenty thousand, one hundred thirty-one".