130312321121 has 2 divisors, whose sum is σ = 130312321122. Its totient is φ = 130312321120.

The previous prime is 130312321039. The next prime is 130312321147. The reversal of 130312321121 is 121123213031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123509370721 + 6802950400 = 351439^2 + 82480^2 .

It is a cyclic number.

It is not a de Polignac number, because 130312321121 - 2¹⁴ = 130312304737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130312321093 and 130312321102.

It is not a weakly prime, because it can be changed into another prime (130312321151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65156160560 + 65156160561.

It is an arithmetic number, because the mean of its divisors is an integer number (65156160561).

Almost surely, 2^130312321121 is an apocalyptic number.

It is an amenable number.

130312321121 is a deficient number, since it is larger than the sum of its proper divisors (1).

130312321121 is an equidigital number, since it uses as much as digits as its factorization.

130312321121 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 130312321121 its reverse (121123213031), we get a palindrome (251435534152).

The spelling of 130312321121 in words is "one hundred thirty billion, three hundred twelve million, three hundred twenty-one thousand, one hundred twenty-one".