130123113221 has 2 divisors, whose sum is σ = 130123113222. Its totient is φ = 130123113220.

The previous prime is 130123113217. The next prime is 130123113257. The reversal of 130123113221 is 122311321031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66571224196 + 63551889025 = 258014^2 + 252095^2 .

It is a cyclic number.

It is not a de Polignac number, because 130123113221 - 2² = 130123113217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130123113193 and 130123113202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130123119221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061556610 + 65061556611.

It is an arithmetic number, because the mean of its divisors is an integer number (65061556611).

Almost surely, 2^130123113221 is an apocalyptic number.

It is an amenable number.

130123113221 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123113221 is an equidigital number, since it uses as much as digits as its factorization.

130123113221 is an evil number, because the sum of its binary digits is even.

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

Adding to 130123113221 its reverse (122311321031), we get a palindrome (252434434252).

The spelling of 130123113221 in words is "one hundred thirty billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred twenty-one".