101121130321 has 2 divisors, whose sum is σ = 101121130322. Its totient is φ = 101121130320.

The previous prime is 101121130303. The next prime is 101121130349. The reversal of 101121130321 is 123031121101.

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., 70803355921 + 30317774400 = 266089^2 + 174120^2 .

It is a cyclic number.

It is not a de Polignac number, because 101121130321 - 2⁵ = 101121130289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101121130295 and 101121130304.

It is not a weakly prime, because it can be changed into another prime (101121130361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50560565160 + 50560565161.

It is an arithmetic number, because the mean of its divisors is an integer number (50560565161).

Almost surely, 2^101121130321 is an apocalyptic number.

It is an amenable number.

101121130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

101121130321 is an equidigital number, since it uses as much as digits as its factorization.

101121130321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101121130321 its reverse (123031121101), we get a palindrome (224152251422).

The spelling of 101121130321 in words is "one hundred one billion, one hundred twenty-one million, one hundred thirty thousand, three hundred twenty-one".